80208160

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:306

約数の個数: 96

約数和(自身を含む): 198761472

約数和(自身を除く): 118553312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 103, 124, 155, 157, 160, 206, 248, 310, 314, 412, 496, 515, 620, 628, 785, 824, 992, 1030, 1240, 1256, 1570, 1648, 2060, 2480, 2512, 3140, 3193, 3296, 4120, 4867, 4960, 5024, 6280, 6386, 8240, 9734, 12560, 12772, 15965, 16171, 16480, 19468, 24335, 25120, 25544, 31930, 32342, 38936, 48670, 51088, 63860, 64684, 77872, 80855, 97340, 102176, 127720, 129368, 155744, 161710, 194680, 255440, 258736, 323420, 389360, 501301, 510880, 517472, 646840, 778720, 1002602, 1293680, 2005204, 2506505, 2587360, 4010408, 5013010, 8020816, 10026020, 16041632, 20052040, 40104080, 80208160]

約数ペア:

[(1, 80208160), (2, 40104080), (4, 20052040), (5, 16041632), (8, 10026020), (10, 8020816), (16, 5013010), (20, 4010408), (31, 2587360), (32, 2506505), (40, 2005204), (62, 1293680), (80, 1002602), (103, 778720), (124, 646840), (155, 517472), (157, 510880), (160, 501301), (206, 389360), (248, 323420), (310, 258736), (314, 255440), (412, 194680), (496, 161710), (515, 155744), (620, 129368), (628, 127720), (785, 102176), (824, 97340), (992, 80855), (1030, 77872), (1240, 64684), (1256, 63860), (1570, 51088), (1648, 48670), (2060, 38936), (2480, 32342), (2512, 31930), (3140, 25544), (3193, 25120), (3296, 24335), (4120, 19468), (4867, 16480), (4960, 16171), (5024, 15965), (6280, 12772), (6386, 12560), (8240, 9734)]