81308320

素因数分解:

$2^5\times 5^1\times {\mathrm{613}}^1\times {\mathrm{829}}^1$

素因数の和:1457

約数の個数: 48

約数和(自身を含む): 192636360

約数和(自身を除く): 111328040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 613, 829, 1226, 1658, 2452, 3065, 3316, 4145, 4904, 6130, 6632, 8290, 9808, 12260, 13264, 16580, 19616, 24520, 26528, 33160, 49040, 66320, 98080, 132640, 508177, 1016354, 2032708, 2540885, 4065416, 5081770, 8130832, 10163540, 16261664, 20327080, 40654160, 81308320]

約数ペア:

[(1, 81308320), (2, 40654160), (4, 20327080), (5, 16261664), (8, 10163540), (10, 8130832), (16, 5081770), (20, 4065416), (32, 2540885), (40, 2032708), (80, 1016354), (160, 508177), (613, 132640), (829, 98080), (1226, 66320), (1658, 49040), (2452, 33160), (3065, 26528), (3316, 24520), (4145, 19616), (4904, 16580), (6130, 13264), (6632, 12260), (8290, 9808)]