8421920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4049}}^1$

素因数の和:4077

約数の個数: 48

約数和(自身を含む): 21432600

約数和(自身を除く): 13010680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 4049, 8098, 16196, 20245, 32392, 40490, 52637, 64784, 80980, 105274, 129568, 161960, 210548, 263185, 323920, 421096, 526370, 647840, 842192, 1052740, 1684384, 2105480, 4210960, 8421920]

約数ペア:

[(1, 8421920), (2, 4210960), (4, 2105480), (5, 1684384), (8, 1052740), (10, 842192), (13, 647840), (16, 526370), (20, 421096), (26, 323920), (32, 263185), (40, 210548), (52, 161960), (65, 129568), (80, 105274), (104, 80980), (130, 64784), (160, 52637), (208, 40490), (260, 32392), (416, 20245), (520, 16196), (1040, 8098), (2080, 4049)]