18848684975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{6421}}^1\times {\mathrm{6907}}^1$

素因数の和:13355

約数の個数: 24

約数和(自身を含む): 24754652208

約数和(自身を除く): 5905967233

約数列:

[1, 5, 17, 25, 85, 425, 6421, 6907, 32105, 34535, 109157, 117419, 160525, 172675, 545785, 587095, 2728925, 2935475, 44349847, 221749235, 753947399, 1108746175, 3769736995, 18848684975]

約数ペア:

[(1, 18848684975), (5, 3769736995), (17, 1108746175), (25, 753947399), (85, 221749235), (425, 44349847), (6421, 2935475), (6907, 2728925), (32105, 587095), (34535, 545785), (109157, 172675), (117419, 160525)]