19875610

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 36691200

約数和(自身を除く): 16815590

約数列:

[1, 2, 5, 10, 79, 139, 158, 181, 278, 362, 395, 695, 790, 905, 1390, 1810, 10981, 14299, 21962, 25159, 28598, 50318, 54905, 71495, 109810, 125795, 142990, 251590, 1987561, 3975122, 9937805, 19875610]

約数ペア:

[(1, 19875610), (2, 9937805), (5, 3975122), (10, 1987561), (79, 251590), (139, 142990), (158, 125795), (181, 109810), (278, 71495), (362, 54905), (395, 50318), (695, 28598), (790, 25159), (905, 21962), (1390, 14299), (1810, 10981)]