31355480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3547}}^1$

素因数の和:3588

約数の個数: 64

約数和(自身を含む): 80468640

約数和(自身を除く): 49113160

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 3547, 4420, 7094, 8840, 14188, 17735, 28376, 35470, 46111, 60299, 70940, 92222, 120598, 141880, 184444, 230555, 241196, 301495, 368888, 461110, 482392, 602990, 783887, 922220, 1205980, 1567774, 1844440, 2411960, 3135548, 3919435, 6271096, 7838870, 15677740, 31355480]

約数ペア:

[(1, 31355480), (2, 15677740), (4, 7838870), (5, 6271096), (8, 3919435), (10, 3135548), (13, 2411960), (17, 1844440), (20, 1567774), (26, 1205980), (34, 922220), (40, 783887), (52, 602990), (65, 482392), (68, 461110), (85, 368888), (104, 301495), (130, 241196), (136, 230555), (170, 184444), (221, 141880), (260, 120598), (340, 92222), (442, 70940), (520, 60299), (680, 46111), (884, 35470), (1105, 28376), (1768, 17735), (2210, 14188), (3547, 8840), (4420, 7094)]