20236840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38917}}^1$

素因数の和:38941

約数の個数: 32

約数和(自身を含む): 49036680

約数和(自身を除く): 28799840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38917, 77834, 155668, 194585, 311336, 389170, 505921, 778340, 1011842, 1556680, 2023684, 2529605, 4047368, 5059210, 10118420, 20236840]

約数ペア:

[(1, 20236840), (2, 10118420), (4, 5059210), (5, 4047368), (8, 2529605), (10, 2023684), (13, 1556680), (20, 1011842), (26, 778340), (40, 505921), (52, 389170), (65, 311336), (104, 194585), (130, 155668), (260, 77834), (520, 38917)]