28270760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3257}}^1$

素因数の和:3306

約数の個数: 64

約数和(自身を含む): 75064320

約数和(自身を除く): 46793560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 3257, 4340, 6514, 8680, 13028, 16285, 22799, 26056, 32570, 45598, 65140, 91196, 100967, 113995, 130280, 182392, 201934, 227990, 403868, 455980, 504835, 706769, 807736, 911960, 1009670, 1413538, 2019340, 2827076, 3533845, 4038680, 5654152, 7067690, 14135380, 28270760]

約数ペア:

[(1, 28270760), (2, 14135380), (4, 7067690), (5, 5654152), (7, 4038680), (8, 3533845), (10, 2827076), (14, 2019340), (20, 1413538), (28, 1009670), (31, 911960), (35, 807736), (40, 706769), (56, 504835), (62, 455980), (70, 403868), (124, 227990), (140, 201934), (155, 182392), (217, 130280), (248, 113995), (280, 100967), (310, 91196), (434, 65140), (620, 45598), (868, 32570), (1085, 26056), (1240, 22799), (1736, 16285), (2170, 13028), (3257, 8680), (4340, 6514)]