9721790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:173

約数の個数: 64

約数和(自身を含む): 20575296

約数和(自身を除く): 10853506

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 53, 65, 83, 85, 106, 130, 166, 170, 221, 265, 415, 442, 530, 689, 830, 901, 1079, 1105, 1378, 1411, 1802, 2158, 2210, 2822, 3445, 4399, 4505, 5395, 6890, 7055, 8798, 9010, 10790, 11713, 14110, 18343, 21995, 23426, 36686, 43990, 57187, 58565, 74783, 91715, 114374, 117130, 149566, 183430, 285935, 373915, 571870, 747830, 972179, 1944358, 4860895, 9721790]

約数ペア:

[(1, 9721790), (2, 4860895), (5, 1944358), (10, 972179), (13, 747830), (17, 571870), (26, 373915), (34, 285935), (53, 183430), (65, 149566), (83, 117130), (85, 114374), (106, 91715), (130, 74783), (166, 58565), (170, 57187), (221, 43990), (265, 36686), (415, 23426), (442, 21995), (530, 18343), (689, 14110), (830, 11713), (901, 10790), (1079, 9010), (1105, 8798), (1378, 7055), (1411, 6890), (1802, 5395), (2158, 4505), (2210, 4399), (2822, 3445)]