84478280

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{3347}}^1$

素因数の和:3989

約数の個数: 32

約数和(自身を含む): 190434240

約数和(自身を除く): 105955960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 1262, 2524, 3155, 3347, 5048, 6310, 6694, 12620, 13388, 16735, 25240, 26776, 33470, 66940, 133880, 2111957, 4223914, 8447828, 10559785, 16895656, 21119570, 42239140, 84478280]

約数ペア:

[(1, 84478280), (2, 42239140), (4, 21119570), (5, 16895656), (8, 10559785), (10, 8447828), (20, 4223914), (40, 2111957), (631, 133880), (1262, 66940), (2524, 33470), (3155, 26776), (3347, 25240), (5048, 16735), (6310, 13388), (6694, 12620)]