261837560

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1\times {\mathrm{467}}^1$

素因数の和:716

約数の個数: 64

約数和(自身を含む): 600462720

約数和(自身を除く): 338625160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 131, 214, 262, 428, 467, 524, 535, 655, 856, 934, 1048, 1070, 1310, 1868, 2140, 2335, 2620, 3736, 4280, 4670, 5240, 9340, 14017, 18680, 28034, 49969, 56068, 61177, 70085, 99938, 112136, 122354, 140170, 199876, 244708, 249845, 280340, 305885, 399752, 489416, 499690, 560680, 611770, 999380, 1223540, 1998760, 2447080, 6545939, 13091878, 26183756, 32729695, 52367512, 65459390, 130918780, 261837560]

約数ペア:

[(1, 261837560), (2, 130918780), (4, 65459390), (5, 52367512), (8, 32729695), (10, 26183756), (20, 13091878), (40, 6545939), (107, 2447080), (131, 1998760), (214, 1223540), (262, 999380), (428, 611770), (467, 560680), (524, 499690), (535, 489416), (655, 399752), (856, 305885), (934, 280340), (1048, 249845), (1070, 244708), (1310, 199876), (1868, 140170), (2140, 122354), (2335, 112136), (2620, 99938), (3736, 70085), (4280, 61177), (4670, 56068), (5240, 49969), (9340, 28034), (14017, 18680)]