20392180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1621}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 46596816

約数和(自身を除く): 26204636

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 1621, 2516, 3145, 3242, 6290, 6484, 8105, 12580, 16210, 27557, 32420, 55114, 59977, 110228, 119954, 137785, 239908, 275570, 299885, 551140, 599770, 1019609, 1199540, 2039218, 4078436, 5098045, 10196090, 20392180]

約数ペア:

[(1, 20392180), (2, 10196090), (4, 5098045), (5, 4078436), (10, 2039218), (17, 1199540), (20, 1019609), (34, 599770), (37, 551140), (68, 299885), (74, 275570), (85, 239908), (148, 137785), (170, 119954), (185, 110228), (340, 59977), (370, 55114), (629, 32420), (740, 27557), (1258, 16210), (1621, 12580), (2516, 8105), (3145, 6484), (3242, 6290)]