80128120

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25357}}^1$

素因数の和:25447

約数の個数: 32

約数和(自身を含む): 182577600

約数和(自身を除く): 102449480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 25357, 50714, 101428, 126785, 202856, 253570, 507140, 1014280, 2003203, 4006406, 8012812, 10016015, 16025624, 20032030, 40064060, 80128120]

約数ペア:

[(1, 80128120), (2, 40064060), (4, 20032030), (5, 16025624), (8, 10016015), (10, 8012812), (20, 4006406), (40, 2003203), (79, 1014280), (158, 507140), (316, 253570), (395, 202856), (632, 126785), (790, 101428), (1580, 50714), (3160, 25357)]