78505830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3947}}^1$

素因数の和:3990

約数の個数: 96

約数和(自身を含む): 232805664

約数和(自身を除く): 154299834

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 26, 30, 34, 39, 45, 51, 65, 78, 85, 90, 102, 117, 130, 153, 170, 195, 221, 234, 255, 306, 390, 442, 510, 585, 663, 765, 1105, 1170, 1326, 1530, 1989, 2210, 3315, 3947, 3978, 6630, 7894, 9945, 11841, 19735, 19890, 23682, 35523, 39470, 51311, 59205, 67099, 71046, 102622, 118410, 134198, 153933, 177615, 201297, 256555, 307866, 335495, 355230, 402594, 461799, 513110, 603891, 670990, 769665, 872287, 923598, 1006485, 1207782, 1539330, 1744574, 2012970, 2308995, 2616861, 3019455, 4361435, 4617990, 5233722, 6038910, 7850583, 8722870, 13084305, 15701166, 26168610, 39252915, 78505830]

約数ペア:

[(1, 78505830), (2, 39252915), (3, 26168610), (5, 15701166), (6, 13084305), (9, 8722870), (10, 7850583), (13, 6038910), (15, 5233722), (17, 4617990), (18, 4361435), (26, 3019455), (30, 2616861), (34, 2308995), (39, 2012970), (45, 1744574), (51, 1539330), (65, 1207782), (78, 1006485), (85, 923598), (90, 872287), (102, 769665), (117, 670990), (130, 603891), (153, 513110), (170, 461799), (195, 402594), (221, 355230), (234, 335495), (255, 307866), (306, 256555), (390, 201297), (442, 177615), (510, 153933), (585, 134198), (663, 118410), (765, 102622), (1105, 71046), (1170, 67099), (1326, 59205), (1530, 51311), (1989, 39470), (2210, 35523), (3315, 23682), (3947, 19890), (3978, 19735), (6630, 11841), (7894, 9945)]