12661640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{10211}}^1$

素因数の和:10253

約数の個数: 32

約数和(自身を含む): 29410560

約数和(自身を除く): 16748920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 10211, 20422, 40844, 51055, 81688, 102110, 204220, 316541, 408440, 633082, 1266164, 1582705, 2532328, 3165410, 6330820, 12661640]

約数ペア:

[(1, 12661640), (2, 6330820), (4, 3165410), (5, 2532328), (8, 1582705), (10, 1266164), (20, 633082), (31, 408440), (40, 316541), (62, 204220), (124, 102110), (155, 81688), (248, 51055), (310, 40844), (620, 20422), (1240, 10211)]