31445820

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:134

約数の個数: 240

約数和(自身を含む): 117089280

約数和(自身を除く): 85643460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 47, 54, 59, 60, 63, 70, 81, 84, 90, 94, 105, 108, 118, 126, 135, 140, 141, 162, 177, 180, 188, 189, 210, 235, 236, 252, 270, 282, 295, 315, 324, 329, 354, 378, 405, 413, 420, 423, 470, 531, 540, 564, 567, 590, 630, 658, 705, 708, 756, 810, 826, 846, 885, 940, 945, 987, 1062, 1134, 1180, 1239, 1260, 1269, 1316, 1410, 1593, 1620, 1645, 1652, 1692, 1770, 1890, 1974, 2065, 2115, 2124, 2268, 2478, 2538, 2655, 2773, 2820, 2835, 2961, 3186, 3290, 3540, 3717, 3780, 3807, 3948, 4130, 4230, 4779, 4935, 4956, 5076, 5310, 5546, 5670, 5922, 6195, 6345, 6372, 6580, 7434, 7614, 7965, 8260, 8319, 8460, 8883, 9558, 9870, 10620, 11092, 11151, 11340, 11844, 12390, 12690, 13865, 14805, 14868, 15228, 15930, 16638, 17766, 18585, 19035, 19116, 19411, 19740, 22302, 23895, 24780, 24957, 25380, 26649, 27730, 29610, 31860, 33276, 33453, 35532, 37170, 38070, 38822, 41595, 44415, 44604, 47790, 49914, 53298, 55460, 55755, 58233, 59220, 66906, 74340, 74871, 76140, 77644, 83190, 88830, 95580, 97055, 99828, 106596, 111510, 116466, 124785, 133245, 133812, 149742, 166380, 167265, 174699, 177660, 194110, 223020, 224613, 232932, 249570, 266490, 291165, 299484, 334530, 349398, 374355, 388220, 449226, 499140, 524097, 532980, 582330, 669060, 698796, 748710, 873495, 898452, 1048194, 1123065, 1164660, 1497420, 1572291, 1746990, 2096388, 2246130, 2620485, 3144582, 3493980, 4492260, 5240970, 6289164, 7861455, 10481940, 15722910, 31445820]

約数ペア:

[(1, 31445820), (2, 15722910), (3, 10481940), (4, 7861455), (5, 6289164), (6, 5240970), (7, 4492260), (9, 3493980), (10, 3144582), (12, 2620485), (14, 2246130), (15, 2096388), (18, 1746990), (20, 1572291), (21, 1497420), (27, 1164660), (28, 1123065), (30, 1048194), (35, 898452), (36, 873495), (42, 748710), (45, 698796), (47, 669060), (54, 582330), (59, 532980), (60, 524097), (63, 499140), (70, 449226), (81, 388220), (84, 374355), (90, 349398), (94, 334530), (105, 299484), (108, 291165), (118, 266490), (126, 249570), (135, 232932), (140, 224613), (141, 223020), (162, 194110), (177, 177660), (180, 174699), (188, 167265), (189, 166380), (210, 149742), (235, 133812), (236, 133245), (252, 124785), (270, 116466), (282, 111510), (295, 106596), (315, 99828), (324, 97055), (329, 95580), (354, 88830), (378, 83190), (405, 77644), (413, 76140), (420, 74871), (423, 74340), (470, 66906), (531, 59220), (540, 58233), (564, 55755), (567, 55460), (590, 53298), (630, 49914), (658, 47790), (705, 44604), (708, 44415), (756, 41595), (810, 38822), (826, 38070), (846, 37170), (885, 35532), (940, 33453), (945, 33276), (987, 31860), (1062, 29610), (1134, 27730), (1180, 26649), (1239, 25380), (1260, 24957), (1269, 24780), (1316, 23895), (1410, 22302), (1593, 19740), (1620, 19411), (1645, 19116), (1652, 19035), (1692, 18585), (1770, 17766), (1890, 16638), (1974, 15930), (2065, 15228), (2115, 14868), (2124, 14805), (2268, 13865), (2478, 12690), (2538, 12390), (2655, 11844), (2773, 11340), (2820, 11151), (2835, 11092), (2961, 10620), (3186, 9870), (3290, 9558), (3540, 8883), (3717, 8460), (3780, 8319), (3807, 8260), (3948, 7965), (4130, 7614), (4230, 7434), (4779, 6580), (4935, 6372), (4956, 6345), (5076, 6195), (5310, 5922), (5546, 5670)]