42389840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{439}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 106064640

約数和(自身を除く): 63674800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 71, 80, 85, 136, 142, 170, 272, 284, 340, 355, 439, 568, 680, 710, 878, 1136, 1207, 1360, 1420, 1756, 2195, 2414, 2840, 3512, 4390, 4828, 5680, 6035, 7024, 7463, 8780, 9656, 12070, 14926, 17560, 19312, 24140, 29852, 31169, 35120, 37315, 48280, 59704, 62338, 74630, 96560, 119408, 124676, 149260, 155845, 249352, 298520, 311690, 498704, 529873, 597040, 623380, 1059746, 1246760, 2119492, 2493520, 2649365, 4238984, 5298730, 8477968, 10597460, 21194920, 42389840]

約数ペア:

[(1, 42389840), (2, 21194920), (4, 10597460), (5, 8477968), (8, 5298730), (10, 4238984), (16, 2649365), (17, 2493520), (20, 2119492), (34, 1246760), (40, 1059746), (68, 623380), (71, 597040), (80, 529873), (85, 498704), (136, 311690), (142, 298520), (170, 249352), (272, 155845), (284, 149260), (340, 124676), (355, 119408), (439, 96560), (568, 74630), (680, 62338), (710, 59704), (878, 48280), (1136, 37315), (1207, 35120), (1360, 31169), (1420, 29852), (1756, 24140), (2195, 19312), (2414, 17560), (2840, 14926), (3512, 12070), (4390, 9656), (4828, 8780), (5680, 7463), (6035, 7024)]