254803880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{205487}}^1$

素因数の和:205529

約数の個数: 32

約数和(自身を含む): 591805440

約数和(自身を除く): 337001560

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 205487, 410974, 821948, 1027435, 1643896, 2054870, 4109740, 6370097, 8219480, 12740194, 25480388, 31850485, 50960776, 63700970, 127401940, 254803880]

約数ペア:

[(1, 254803880), (2, 127401940), (4, 63700970), (5, 50960776), (8, 31850485), (10, 25480388), (20, 12740194), (31, 8219480), (40, 6370097), (62, 4109740), (124, 2054870), (155, 1643896), (248, 1027435), (310, 821948), (620, 410974), (1240, 205487)]