128337680

素因数分解:

$2^4\times 5^1\times {\mathrm{613}}^1\times {\mathrm{2617}}^1$

素因数の和:3243

約数の個数: 40

約数和(自身を含む): 298986072

約数和(自身を除く): 170648392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 613, 1226, 2452, 2617, 3065, 4904, 5234, 6130, 9808, 10468, 12260, 13085, 20936, 24520, 26170, 41872, 49040, 52340, 104680, 209360, 1604221, 3208442, 6416884, 8021105, 12833768, 16042210, 25667536, 32084420, 64168840, 128337680]

約数ペア:

[(1, 128337680), (2, 64168840), (4, 32084420), (5, 25667536), (8, 16042210), (10, 12833768), (16, 8021105), (20, 6416884), (40, 3208442), (80, 1604221), (613, 209360), (1226, 104680), (2452, 52340), (2617, 49040), (3065, 41872), (4904, 26170), (5234, 24520), (6130, 20936), (9808, 13085), (10468, 12260)]