91991420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{270563}}^1$

素因数の和:270589

約数の個数: 24

約数和(自身を含む): 204546384

約数和(自身を除く): 112554964

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 270563, 541126, 1082252, 1352815, 2705630, 4599571, 5411260, 9199142, 18398284, 22997855, 45995710, 91991420]

約数ペア:

[(1, 91991420), (2, 45995710), (4, 22997855), (5, 18398284), (10, 9199142), (17, 5411260), (20, 4599571), (34, 2705630), (68, 1352815), (85, 1082252), (170, 541126), (340, 270563)]