642772760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{907}}^1\times {\mathrm{2531}}^1$

素因数の和:3456

約数の個数: 64

約数和(自身を含む): 1655320320

約数和(自身を除く): 1012547560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 907, 1814, 2531, 3628, 4535, 5062, 6349, 7256, 9070, 10124, 12655, 12698, 17717, 18140, 20248, 25310, 25396, 31745, 35434, 36280, 50620, 50792, 63490, 70868, 88585, 101240, 126980, 141736, 177170, 253960, 354340, 708680, 2295617, 4591234, 9182468, 11478085, 16069319, 18364936, 22956170, 32138638, 45912340, 64277276, 80346595, 91824680, 128554552, 160693190, 321386380, 642772760]

約数ペア:

[(1, 642772760), (2, 321386380), (4, 160693190), (5, 128554552), (7, 91824680), (8, 80346595), (10, 64277276), (14, 45912340), (20, 32138638), (28, 22956170), (35, 18364936), (40, 16069319), (56, 11478085), (70, 9182468), (140, 4591234), (280, 2295617), (907, 708680), (1814, 354340), (2531, 253960), (3628, 177170), (4535, 141736), (5062, 126980), (6349, 101240), (7256, 88585), (9070, 70868), (10124, 63490), (12655, 50792), (12698, 50620), (17717, 36280), (18140, 35434), (20248, 31745), (25310, 25396)]