61310320

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:290

約数の個数: 80

約数和(自身を含む): 147312000

約数和(自身を除く): 86001680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 89, 109, 158, 178, 218, 316, 356, 395, 436, 445, 545, 632, 712, 790, 872, 890, 1090, 1264, 1424, 1580, 1744, 1780, 2180, 3160, 3560, 4360, 6320, 7031, 7120, 8611, 8720, 9701, 14062, 17222, 19402, 28124, 34444, 35155, 38804, 43055, 48505, 56248, 68888, 70310, 77608, 86110, 97010, 112496, 137776, 140620, 155216, 172220, 194020, 281240, 344440, 388040, 562480, 688880, 766379, 776080, 1532758, 3065516, 3831895, 6131032, 7663790, 12262064, 15327580, 30655160, 61310320]

約数ペア:

[(1, 61310320), (2, 30655160), (4, 15327580), (5, 12262064), (8, 7663790), (10, 6131032), (16, 3831895), (20, 3065516), (40, 1532758), (79, 776080), (80, 766379), (89, 688880), (109, 562480), (158, 388040), (178, 344440), (218, 281240), (316, 194020), (356, 172220), (395, 155216), (436, 140620), (445, 137776), (545, 112496), (632, 97010), (712, 86110), (790, 77608), (872, 70310), (890, 68888), (1090, 56248), (1264, 48505), (1424, 43055), (1580, 38804), (1744, 35155), (1780, 34444), (2180, 28124), (3160, 19402), (3560, 17222), (4360, 14062), (6320, 9701), (7031, 8720), (7120, 8611)]