12890480

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{599}}^1$

素因数の和:881

約数の個数: 40

約数和(自身を含む): 30132000

約数和(自身を除く): 17241520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 538, 599, 1076, 1198, 1345, 2152, 2396, 2690, 2995, 4304, 4792, 5380, 5990, 9584, 10760, 11980, 21520, 23960, 47920, 161131, 322262, 644524, 805655, 1289048, 1611310, 2578096, 3222620, 6445240, 12890480]

約数ペア:

[(1, 12890480), (2, 6445240), (4, 3222620), (5, 2578096), (8, 1611310), (10, 1289048), (16, 805655), (20, 644524), (40, 322262), (80, 161131), (269, 47920), (538, 23960), (599, 21520), (1076, 11980), (1198, 10760), (1345, 9584), (2152, 5990), (2396, 5380), (2690, 4792), (2995, 4304)]