160181980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2069}}^1$

素因数の和:2171

約数の個数: 72

約数和(自身を含む): 396446400

約数和(自身を除く): 236264420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 790, 980, 1106, 1580, 2069, 2212, 2765, 3871, 4138, 5530, 7742, 8276, 10345, 11060, 14483, 15484, 19355, 20690, 28966, 38710, 41380, 57932, 72415, 77420, 101381, 144830, 163451, 202762, 289660, 326902, 405524, 506905, 653804, 817255, 1013810, 1144157, 1634510, 2027620, 2288314, 3269020, 4576628, 5720785, 8009099, 11441570, 16018198, 22883140, 32036396, 40045495, 80090990, 160181980]

約数ペア:

[(1, 160181980), (2, 80090990), (4, 40045495), (5, 32036396), (7, 22883140), (10, 16018198), (14, 11441570), (20, 8009099), (28, 5720785), (35, 4576628), (49, 3269020), (70, 2288314), (79, 2027620), (98, 1634510), (140, 1144157), (158, 1013810), (196, 817255), (245, 653804), (316, 506905), (395, 405524), (490, 326902), (553, 289660), (790, 202762), (980, 163451), (1106, 144830), (1580, 101381), (2069, 77420), (2212, 72415), (2765, 57932), (3871, 41380), (4138, 38710), (5530, 28966), (7742, 20690), (8276, 19355), (10345, 15484), (11060, 14483)]