77838280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149689}}^1$

素因数の和:149713

約数の個数: 32

約数和(自身を含む): 188609400

約数和(自身を除く): 110771120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 149689, 299378, 598756, 748445, 1197512, 1496890, 1945957, 2993780, 3891914, 5987560, 7783828, 9729785, 15567656, 19459570, 38919140, 77838280]

約数ペア:

[(1, 77838280), (2, 38919140), (4, 19459570), (5, 15567656), (8, 9729785), (10, 7783828), (13, 5987560), (20, 3891914), (26, 2993780), (40, 1945957), (52, 1496890), (65, 1197512), (104, 748445), (130, 598756), (260, 299378), (520, 149689)]