197907890

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{421}}^1\times {\mathrm{1621}}^1$

素因数の和:2078

約数の個数: 32

約数和(自身を含む): 369621360

約数和(自身を除く): 171713470

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 421, 842, 1621, 2105, 3242, 4210, 8105, 12209, 16210, 24418, 47009, 61045, 94018, 122090, 235045, 470090, 682441, 1364882, 3412205, 6824410, 19790789, 39581578, 98953945, 197907890]

約数ペア:

[(1, 197907890), (2, 98953945), (5, 39581578), (10, 19790789), (29, 6824410), (58, 3412205), (145, 1364882), (290, 682441), (421, 470090), (842, 235045), (1621, 122090), (2105, 94018), (3242, 61045), (4210, 47009), (8105, 24418), (12209, 16210)]