39657680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15991}}^1$

素因数の和:16035

約数の個数: 40

約数和(自身を含む): 95184384

約数和(自身を除く): 55526704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 15991, 31982, 63964, 79955, 127928, 159910, 255856, 319820, 495721, 639640, 991442, 1279280, 1982884, 2478605, 3965768, 4957210, 7931536, 9914420, 19828840, 39657680]

約数ペア:

[(1, 39657680), (2, 19828840), (4, 9914420), (5, 7931536), (8, 4957210), (10, 3965768), (16, 2478605), (20, 1982884), (31, 1279280), (40, 991442), (62, 639640), (80, 495721), (124, 319820), (155, 255856), (248, 159910), (310, 127928), (496, 79955), (620, 63964), (1240, 31982), (2480, 15991)]