12740240

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2243}}^1$

素因数の和:2327

約数の個数: 40

約数和(自身を含む): 30051648

約数和(自身を除く): 17311408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2243, 2840, 4486, 5680, 8972, 11215, 17944, 22430, 35888, 44860, 89720, 159253, 179440, 318506, 637012, 796265, 1274024, 1592530, 2548048, 3185060, 6370120, 12740240]

約数ペア:

[(1, 12740240), (2, 6370120), (4, 3185060), (5, 2548048), (8, 1592530), (10, 1274024), (16, 796265), (20, 637012), (40, 318506), (71, 179440), (80, 159253), (142, 89720), (284, 44860), (355, 35888), (568, 22430), (710, 17944), (1136, 11215), (1420, 8972), (2243, 5680), (2840, 4486)]