25916920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15803}}^1$

素因数の和:15855

約数の個数: 32

約数和(自身を含む): 59739120

約数和(自身を除く): 33822200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15803, 31606, 63212, 79015, 126424, 158030, 316060, 632120, 647923, 1295846, 2591692, 3239615, 5183384, 6479230, 12958460, 25916920]

約数ペア:

[(1, 25916920), (2, 12958460), (4, 6479230), (5, 5183384), (8, 3239615), (10, 2591692), (20, 1295846), (40, 647923), (41, 632120), (82, 316060), (164, 158030), (205, 126424), (328, 79015), (410, 63212), (820, 31606), (1640, 15803)]