31219820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{91823}}^1$

素因数の和:91849

約数の個数: 24

約数和(自身を含む): 69418944

約数和(自身を除く): 38199124

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 91823, 183646, 367292, 459115, 918230, 1560991, 1836460, 3121982, 6243964, 7804955, 15609910, 31219820]

約数ペア:

[(1, 31219820), (2, 15609910), (4, 7804955), (5, 6243964), (10, 3121982), (17, 1836460), (20, 1560991), (34, 918230), (68, 459115), (85, 367292), (170, 183646), (340, 91823)]