78978390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{521}}^1$

素因数の和:725

約数の個数: 64

約数和(自身を含む): 197240832

約数和(自身を除く): 118262442

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 93, 155, 163, 186, 310, 326, 465, 489, 521, 815, 930, 978, 1042, 1563, 1630, 2445, 2605, 3126, 4890, 5053, 5210, 7815, 10106, 15159, 15630, 16151, 25265, 30318, 32302, 48453, 50530, 75795, 80755, 84923, 96906, 151590, 161510, 169846, 242265, 254769, 424615, 484530, 509538, 849230, 1273845, 2547690, 2632613, 5265226, 7897839, 13163065, 15795678, 26326130, 39489195, 78978390]

約数ペア:

[(1, 78978390), (2, 39489195), (3, 26326130), (5, 15795678), (6, 13163065), (10, 7897839), (15, 5265226), (30, 2632613), (31, 2547690), (62, 1273845), (93, 849230), (155, 509538), (163, 484530), (186, 424615), (310, 254769), (326, 242265), (465, 169846), (489, 161510), (521, 151590), (815, 96906), (930, 84923), (978, 80755), (1042, 75795), (1563, 50530), (1630, 48453), (2445, 32302), (2605, 30318), (3126, 25265), (4890, 16151), (5053, 15630), (5210, 15159), (7815, 10106)]