1291245160

素因数分解:

$2^3\times 5^1\times {\mathrm{523}}^1\times {\mathrm{61723}}^1$

素因数の和:62257

約数の個数: 32

約数和(自身を含む): 2910903840

約数和(自身を除く): 1619658680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 523, 1046, 2092, 2615, 4184, 5230, 10460, 20920, 61723, 123446, 246892, 308615, 493784, 617230, 1234460, 2468920, 32281129, 64562258, 129124516, 161405645, 258249032, 322811290, 645622580, 1291245160]

約数ペア:

[(1, 1291245160), (2, 645622580), (4, 322811290), (5, 258249032), (8, 161405645), (10, 129124516), (20, 64562258), (40, 32281129), (523, 2468920), (1046, 1234460), (2092, 617230), (2615, 493784), (4184, 308615), (5230, 246892), (10460, 123446), (20920, 61723)]