256847220

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{571}}^1$

素因数の和:620

約数の個数: 288

約数和(自身を含む): 985944960

約数和(自身を除く): 729097740

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 27, 28, 30, 34, 35, 36, 42, 45, 49, 51, 54, 60, 63, 68, 70, 84, 85, 90, 98, 102, 105, 108, 119, 126, 135, 140, 147, 153, 170, 180, 189, 196, 204, 210, 238, 245, 252, 255, 270, 294, 306, 315, 340, 357, 378, 420, 441, 459, 476, 490, 510, 540, 571, 588, 595, 612, 630, 714, 735, 756, 765, 833, 882, 918, 945, 980, 1020, 1071, 1142, 1190, 1260, 1323, 1428, 1470, 1530, 1666, 1713, 1764, 1785, 1836, 1890, 2142, 2205, 2284, 2295, 2380, 2499, 2646, 2855, 2940, 3060, 3213, 3332, 3426, 3570, 3780, 3997, 4165, 4284, 4410, 4590, 4998, 5139, 5292, 5355, 5710, 6426, 6615, 6852, 7140, 7497, 7994, 8330, 8565, 8820, 9180, 9707, 9996, 10278, 10710, 11420, 11991, 12495, 12852, 13230, 14994, 15417, 15988, 16065, 16660, 17130, 19414, 19985, 20556, 21420, 22491, 23982, 24990, 25695, 26460, 27979, 29121, 29988, 30834, 32130, 34260, 35973, 37485, 38828, 39970, 44982, 47964, 48535, 49980, 51390, 55958, 58242, 59955, 61668, 64260, 67949, 71946, 74970, 77085, 79940, 83937, 87363, 89964, 97070, 102780, 107919, 111916, 112455, 116484, 119910, 135898, 139895, 143892, 145605, 149940, 154170, 167874, 174726, 179865, 194140, 203847, 215838, 224910, 239820, 251811, 262089, 271796, 279790, 291210, 308340, 335748, 339745, 349452, 359730, 407694, 419685, 431676, 436815, 449820, 475643, 503622, 524178, 539595, 559580, 582420, 611541, 679490, 719460, 755433, 815388, 839370, 873630, 951286, 1007244, 1019235, 1048356, 1079190, 1223082, 1259055, 1310445, 1358980, 1426929, 1510866, 1678740, 1747260, 1834623, 1902572, 2038470, 2158380, 2378215, 2446164, 2518110, 2620890, 2853858, 3021732, 3057705, 3669246, 3777165, 4076940, 4280787, 4756430, 5036220, 5241780, 5707716, 6115410, 7134645, 7338492, 7554330, 8561574, 9173115, 9512860, 12230820, 12842361, 14269290, 15108660, 17123148, 18346230, 21403935, 25684722, 28538580, 36692460, 42807870, 51369444, 64211805, 85615740, 128423610, 256847220]

約数ペア:

[(1, 256847220), (2, 128423610), (3, 85615740), (4, 64211805), (5, 51369444), (6, 42807870), (7, 36692460), (9, 28538580), (10, 25684722), (12, 21403935), (14, 18346230), (15, 17123148), (17, 15108660), (18, 14269290), (20, 12842361), (21, 12230820), (27, 9512860), (28, 9173115), (30, 8561574), (34, 7554330), (35, 7338492), (36, 7134645), (42, 6115410), (45, 5707716), (49, 5241780), (51, 5036220), (54, 4756430), (60, 4280787), (63, 4076940), (68, 3777165), (70, 3669246), (84, 3057705), (85, 3021732), (90, 2853858), (98, 2620890), (102, 2518110), (105, 2446164), (108, 2378215), (119, 2158380), (126, 2038470), (135, 1902572), (140, 1834623), (147, 1747260), (153, 1678740), (170, 1510866), (180, 1426929), (189, 1358980), (196, 1310445), (204, 1259055), (210, 1223082), (238, 1079190), (245, 1048356), (252, 1019235), (255, 1007244), (270, 951286), (294, 873630), (306, 839370), (315, 815388), (340, 755433), (357, 719460), (378, 679490), (420, 611541), (441, 582420), (459, 559580), (476, 539595), (490, 524178), (510, 503622), (540, 475643), (571, 449820), (588, 436815), (595, 431676), (612, 419685), (630, 407694), (714, 359730), (735, 349452), (756, 339745), (765, 335748), (833, 308340), (882, 291210), (918, 279790), (945, 271796), (980, 262089), (1020, 251811), (1071, 239820), (1142, 224910), (1190, 215838), (1260, 203847), (1323, 194140), (1428, 179865), (1470, 174726), (1530, 167874), (1666, 154170), (1713, 149940), (1764, 145605), (1785, 143892), (1836, 139895), (1890, 135898), (2142, 119910), (2205, 116484), (2284, 112455), (2295, 111916), (2380, 107919), (2499, 102780), (2646, 97070), (2855, 89964), (2940, 87363), (3060, 83937), (3213, 79940), (3332, 77085), (3426, 74970), (3570, 71946), (3780, 67949), (3997, 64260), (4165, 61668), (4284, 59955), (4410, 58242), (4590, 55958), (4998, 51390), (5139, 49980), (5292, 48535), (5355, 47964), (5710, 44982), (6426, 39970), (6615, 38828), (6852, 37485), (7140, 35973), (7497, 34260), (7994, 32130), (8330, 30834), (8565, 29988), (8820, 29121), (9180, 27979), (9707, 26460), (9996, 25695), (10278, 24990), (10710, 23982), (11420, 22491), (11991, 21420), (12495, 20556), (12852, 19985), (13230, 19414), (14994, 17130), (15417, 16660), (15988, 16065)]