20009925

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{6841}}^1$

素因数の和:6870

約数の個数: 36

約数和(自身を含む): 38602564

約数和(自身を除く): 18592639

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 195, 225, 325, 585, 975, 2925, 6841, 20523, 34205, 61569, 88933, 102615, 171025, 266799, 307845, 444665, 513075, 800397, 1333995, 1539225, 2223325, 4001985, 6669975, 20009925]

約数ペア:

[(1, 20009925), (3, 6669975), (5, 4001985), (9, 2223325), (13, 1539225), (15, 1333995), (25, 800397), (39, 513075), (45, 444665), (65, 307845), (75, 266799), (117, 171025), (195, 102615), (225, 88933), (325, 61569), (585, 34205), (975, 20523), (2925, 6841)]