51378160

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20717}}^1$

素因数の和:20761

約数の個数: 40

約数和(自身を含む): 123313536

約数和(自身を除く): 71935376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 20717, 41434, 82868, 103585, 165736, 207170, 331472, 414340, 642227, 828680, 1284454, 1657360, 2568908, 3211135, 5137816, 6422270, 10275632, 12844540, 25689080, 51378160]

約数ペア:

[(1, 51378160), (2, 25689080), (4, 12844540), (5, 10275632), (8, 6422270), (10, 5137816), (16, 3211135), (20, 2568908), (31, 1657360), (40, 1284454), (62, 828680), (80, 642227), (124, 414340), (155, 331472), (248, 207170), (310, 165736), (496, 103585), (620, 82868), (1240, 41434), (2480, 20717)]