82381880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9491}}^1$

素因数の和:9540

約数の個数: 64

約数和(自身を含む): 218695680

約数和(自身を除く): 136313800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 9491, 18982, 37964, 47455, 66437, 75928, 94910, 132874, 189820, 265748, 294221, 332185, 379640, 531496, 588442, 664370, 1176884, 1328740, 1471105, 2059547, 2353768, 2657480, 2942210, 4119094, 5884420, 8238188, 10297735, 11768840, 16476376, 20595470, 41190940, 82381880]

約数ペア:

[(1, 82381880), (2, 41190940), (4, 20595470), (5, 16476376), (7, 11768840), (8, 10297735), (10, 8238188), (14, 5884420), (20, 4119094), (28, 2942210), (31, 2657480), (35, 2353768), (40, 2059547), (56, 1471105), (62, 1328740), (70, 1176884), (124, 664370), (140, 588442), (155, 531496), (217, 379640), (248, 332185), (280, 294221), (310, 265748), (434, 189820), (620, 132874), (868, 94910), (1085, 75928), (1240, 66437), (1736, 47455), (2170, 37964), (4340, 18982), (8680, 9491)]