99807020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 214032000

約数和(自身を除く): 114224980

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 181, 316, 349, 362, 395, 698, 724, 790, 905, 1396, 1580, 1745, 1810, 3490, 3620, 6980, 14299, 27571, 28598, 55142, 57196, 63169, 71495, 110284, 126338, 137855, 142990, 252676, 275710, 285980, 315845, 551420, 631690, 1263380, 4990351, 9980702, 19961404, 24951755, 49903510, 99807020]

約数ペア:

[(1, 99807020), (2, 49903510), (4, 24951755), (5, 19961404), (10, 9980702), (20, 4990351), (79, 1263380), (158, 631690), (181, 551420), (316, 315845), (349, 285980), (362, 275710), (395, 252676), (698, 142990), (724, 137855), (790, 126338), (905, 110284), (1396, 71495), (1580, 63169), (1745, 57196), (1810, 55142), (3490, 28598), (3620, 27571), (6980, 14299)]