128578266

素因数分解:

$2^1\times 3^4\times {\mathrm{31}}^1\times {\mathrm{25603}}^1$

素因数の和:25648

約数の個数: 40

約数和(自身を含む): 297416064

約数和(自身を除く): 168837798

約数列:

[1, 2, 3, 6, 9, 18, 27, 31, 54, 62, 81, 93, 162, 186, 279, 558, 837, 1674, 2511, 5022, 25603, 51206, 76809, 153618, 230427, 460854, 691281, 793693, 1382562, 1587386, 2073843, 2381079, 4147686, 4762158, 7143237, 14286474, 21429711, 42859422, 64289133, 128578266]

約数ペア:

[(1, 128578266), (2, 64289133), (3, 42859422), (6, 21429711), (9, 14286474), (18, 7143237), (27, 4762158), (31, 4147686), (54, 2381079), (62, 2073843), (81, 1587386), (93, 1382562), (162, 793693), (186, 691281), (279, 460854), (558, 230427), (837, 153618), (1674, 76809), (2511, 51206), (5022, 25603)]