20147409880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38745019}}^1$

素因数の和:38745043

約数の個数: 32

約数和(自身を含む): 48818725200

約数和(自身を除く): 28671315320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38745019, 77490038, 154980076, 193725095, 309960152, 387450190, 503685247, 774900380, 1007370494, 1549800760, 2014740988, 2518426235, 4029481976, 5036852470, 10073704940, 20147409880]

約数ペア:

[(1, 20147409880), (2, 10073704940), (4, 5036852470), (5, 4029481976), (8, 2518426235), (10, 2014740988), (13, 1549800760), (20, 1007370494), (26, 774900380), (40, 503685247), (52, 387450190), (65, 309960152), (104, 193725095), (130, 154980076), (260, 77490038), (520, 38745019)]