87718640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{64499}}^1$

素因数の和:64529

約数の個数: 40

約数和(自身を含む): 215946000

約数和(自身を除く): 128227360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 64499, 128998, 257996, 322495, 515992, 644990, 1031984, 1096483, 1289980, 2192966, 2579960, 4385932, 5159920, 5482415, 8771864, 10964830, 17543728, 21929660, 43859320, 87718640]

約数ペア:

[(1, 87718640), (2, 43859320), (4, 21929660), (5, 17543728), (8, 10964830), (10, 8771864), (16, 5482415), (17, 5159920), (20, 4385932), (34, 2579960), (40, 2192966), (68, 1289980), (80, 1096483), (85, 1031984), (136, 644990), (170, 515992), (272, 322495), (340, 257996), (680, 128998), (1360, 64499)]