30655160

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:288

約数の個数: 64

約数和(自身を含む): 71280000

約数和(自身を除く): 40624840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 89, 109, 158, 178, 218, 316, 356, 395, 436, 445, 545, 632, 712, 790, 872, 890, 1090, 1580, 1780, 2180, 3160, 3560, 4360, 7031, 8611, 9701, 14062, 17222, 19402, 28124, 34444, 35155, 38804, 43055, 48505, 56248, 68888, 70310, 77608, 86110, 97010, 140620, 172220, 194020, 281240, 344440, 388040, 766379, 1532758, 3065516, 3831895, 6131032, 7663790, 15327580, 30655160]

約数ペア:

[(1, 30655160), (2, 15327580), (4, 7663790), (5, 6131032), (8, 3831895), (10, 3065516), (20, 1532758), (40, 766379), (79, 388040), (89, 344440), (109, 281240), (158, 194020), (178, 172220), (218, 140620), (316, 97010), (356, 86110), (395, 77608), (436, 70310), (445, 68888), (545, 56248), (632, 48505), (712, 43055), (790, 38804), (872, 35155), (890, 34444), (1090, 28124), (1580, 19402), (1780, 17222), (2180, 14062), (3160, 9701), (3560, 8611), (4360, 7031)]