261945180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1747}}^1$

素因数の和:1793

約数の個数: 216

約数和(自身を含む): 979222608

約数和(自身を除く): 717277428

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 28, 30, 34, 35, 36, 42, 45, 49, 51, 60, 63, 68, 70, 84, 85, 90, 98, 102, 105, 119, 126, 140, 147, 153, 170, 180, 196, 204, 210, 238, 245, 252, 255, 294, 306, 315, 340, 357, 420, 441, 476, 490, 510, 588, 595, 612, 630, 714, 735, 765, 833, 882, 980, 1020, 1071, 1190, 1260, 1428, 1470, 1530, 1666, 1747, 1764, 1785, 2142, 2205, 2380, 2499, 2940, 3060, 3332, 3494, 3570, 4165, 4284, 4410, 4998, 5241, 5355, 6988, 7140, 7497, 8330, 8735, 8820, 9996, 10482, 10710, 12229, 12495, 14994, 15723, 16660, 17470, 20964, 21420, 24458, 24990, 26205, 29699, 29988, 31446, 34940, 36687, 37485, 48916, 49980, 52410, 59398, 61145, 62892, 73374, 74970, 78615, 85603, 89097, 104820, 110061, 118796, 122290, 146748, 148495, 149940, 157230, 171206, 178194, 183435, 207893, 220122, 244580, 256809, 267291, 296990, 314460, 342412, 356388, 366870, 415786, 428015, 440244, 445485, 513618, 534582, 550305, 593980, 623679, 733740, 770427, 831572, 856030, 890970, 1027236, 1039465, 1069164, 1100610, 1247358, 1284045, 1336455, 1455251, 1540854, 1712060, 1781940, 1871037, 2078930, 2201220, 2494716, 2568090, 2672910, 2910502, 3081708, 3118395, 3742074, 3852135, 4157860, 4365753, 5136180, 5345820, 5821004, 6236790, 7276255, 7484148, 7704270, 8731506, 9355185, 12473580, 13097259, 14552510, 15408540, 17463012, 18710370, 21828765, 26194518, 29105020, 37420740, 43657530, 52389036, 65486295, 87315060, 130972590, 261945180]

約数ペア:

[(1, 261945180), (2, 130972590), (3, 87315060), (4, 65486295), (5, 52389036), (6, 43657530), (7, 37420740), (9, 29105020), (10, 26194518), (12, 21828765), (14, 18710370), (15, 17463012), (17, 15408540), (18, 14552510), (20, 13097259), (21, 12473580), (28, 9355185), (30, 8731506), (34, 7704270), (35, 7484148), (36, 7276255), (42, 6236790), (45, 5821004), (49, 5345820), (51, 5136180), (60, 4365753), (63, 4157860), (68, 3852135), (70, 3742074), (84, 3118395), (85, 3081708), (90, 2910502), (98, 2672910), (102, 2568090), (105, 2494716), (119, 2201220), (126, 2078930), (140, 1871037), (147, 1781940), (153, 1712060), (170, 1540854), (180, 1455251), (196, 1336455), (204, 1284045), (210, 1247358), (238, 1100610), (245, 1069164), (252, 1039465), (255, 1027236), (294, 890970), (306, 856030), (315, 831572), (340, 770427), (357, 733740), (420, 623679), (441, 593980), (476, 550305), (490, 534582), (510, 513618), (588, 445485), (595, 440244), (612, 428015), (630, 415786), (714, 366870), (735, 356388), (765, 342412), (833, 314460), (882, 296990), (980, 267291), (1020, 256809), (1071, 244580), (1190, 220122), (1260, 207893), (1428, 183435), (1470, 178194), (1530, 171206), (1666, 157230), (1747, 149940), (1764, 148495), (1785, 146748), (2142, 122290), (2205, 118796), (2380, 110061), (2499, 104820), (2940, 89097), (3060, 85603), (3332, 78615), (3494, 74970), (3570, 73374), (4165, 62892), (4284, 61145), (4410, 59398), (4998, 52410), (5241, 49980), (5355, 48916), (6988, 37485), (7140, 36687), (7497, 34940), (8330, 31446), (8735, 29988), (8820, 29699), (9996, 26205), (10482, 24990), (10710, 24458), (12229, 21420), (12495, 20964), (14994, 17470), (15723, 16660)]