12541640

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{1301}}^1$

素因数の和:1553

約数の個数: 32

約数和(自身を含む): 28357560

約数和(自身を除く): 15815920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1301, 1928, 2410, 2602, 4820, 5204, 6505, 9640, 10408, 13010, 26020, 52040, 313541, 627082, 1254164, 1567705, 2508328, 3135410, 6270820, 12541640]

約数ペア:

[(1, 12541640), (2, 6270820), (4, 3135410), (5, 2508328), (8, 1567705), (10, 1254164), (20, 627082), (40, 313541), (241, 52040), (482, 26020), (964, 13010), (1205, 10408), (1301, 9640), (1928, 6505), (2410, 5204), (2602, 4820)]