20238920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38921}}^1$

素因数の和:38945

約数の個数: 32

約数和(自身を含む): 49041720

約数和(自身を除く): 28802800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38921, 77842, 155684, 194605, 311368, 389210, 505973, 778420, 1011946, 1556840, 2023892, 2529865, 4047784, 5059730, 10119460, 20238920]

約数ペア:

[(1, 20238920), (2, 10119460), (4, 5059730), (5, 4047784), (8, 2529865), (10, 2023892), (13, 1556840), (20, 1011946), (26, 778420), (40, 505973), (52, 389210), (65, 311368), (104, 194605), (130, 155684), (260, 77842), (520, 38921)]