22156940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2749}}^1$

素因数の和:2802

約数の個数: 48

約数和(自身を含む): 51744000

約数和(自身を除く): 29587060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 2749, 4030, 5498, 8060, 10996, 13745, 27490, 35737, 54980, 71474, 85219, 142948, 170438, 178685, 340876, 357370, 426095, 714740, 852190, 1107847, 1704380, 2215694, 4431388, 5539235, 11078470, 22156940]

約数ペア:

[(1, 22156940), (2, 11078470), (4, 5539235), (5, 4431388), (10, 2215694), (13, 1704380), (20, 1107847), (26, 852190), (31, 714740), (52, 426095), (62, 357370), (65, 340876), (124, 178685), (130, 170438), (155, 142948), (260, 85219), (310, 71474), (403, 54980), (620, 35737), (806, 27490), (1612, 13745), (2015, 10996), (2749, 8060), (4030, 5498)]