1987640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 4924800

約数和(自身を除く): 2937160

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 79, 85, 136, 148, 158, 170, 185, 296, 316, 340, 370, 395, 629, 632, 680, 740, 790, 1258, 1343, 1480, 1580, 2516, 2686, 2923, 3145, 3160, 5032, 5372, 5846, 6290, 6715, 10744, 11692, 12580, 13430, 14615, 23384, 25160, 26860, 29230, 49691, 53720, 58460, 99382, 116920, 198764, 248455, 397528, 496910, 993820, 1987640]

約数ペア:

[(1, 1987640), (2, 993820), (4, 496910), (5, 397528), (8, 248455), (10, 198764), (17, 116920), (20, 99382), (34, 58460), (37, 53720), (40, 49691), (68, 29230), (74, 26860), (79, 25160), (85, 23384), (136, 14615), (148, 13430), (158, 12580), (170, 11692), (185, 10744), (296, 6715), (316, 6290), (340, 5846), (370, 5372), (395, 5032), (629, 3160), (632, 3145), (680, 2923), (740, 2686), (790, 2516), (1258, 1580), (1343, 1480)]