77620920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49757}}^1$

素因数の和:49784

約数の個数: 64

約数和(自身を含む): 250780320

約数和(自身を除く): 173159400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 49757, 99514, 149271, 199028, 248785, 298542, 398056, 497570, 597084, 646841, 746355, 995140, 1194168, 1293682, 1492710, 1940523, 1990280, 2587364, 2985420, 3234205, 3881046, 5174728, 5970840, 6468410, 7762092, 9702615, 12936820, 15524184, 19405230, 25873640, 38810460, 77620920]

約数ペア:

[(1, 77620920), (2, 38810460), (3, 25873640), (4, 19405230), (5, 15524184), (6, 12936820), (8, 9702615), (10, 7762092), (12, 6468410), (13, 5970840), (15, 5174728), (20, 3881046), (24, 3234205), (26, 2985420), (30, 2587364), (39, 1990280), (40, 1940523), (52, 1492710), (60, 1293682), (65, 1194168), (78, 995140), (104, 746355), (120, 646841), (130, 597084), (156, 497570), (195, 398056), (260, 298542), (312, 248785), (390, 199028), (520, 149271), (780, 99514), (1560, 49757)]