201420020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{324871}}^1$

素因数の和:324911

約数の個数: 24

約数和(自身を含む): 436627968

約数和(自身を除く): 235207948

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 324871, 649742, 1299484, 1624355, 3248710, 6497420, 10071001, 20142002, 40284004, 50355005, 100710010, 201420020]

約数ペア:

[(1, 201420020), (2, 100710010), (4, 50355005), (5, 40284004), (10, 20142002), (20, 10071001), (31, 6497420), (62, 3248710), (124, 1624355), (155, 1299484), (310, 649742), (620, 324871)]