12856420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37813}}^1$

素因数の和:37839

約数の個数: 24

約数和(自身を含む): 28587384

約数和(自身を除く): 15730964

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 37813, 75626, 151252, 189065, 378130, 642821, 756260, 1285642, 2571284, 3214105, 6428210, 12856420]

約数ペア:

[(1, 12856420), (2, 6428210), (4, 3214105), (5, 2571284), (10, 1285642), (17, 756260), (20, 642821), (34, 378130), (68, 189065), (85, 151252), (170, 75626), (340, 37813)]