19673680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{18917}}^1$

素因数の和:18943

約数の個数: 40

約数和(自身を含む): 49262472

約数和(自身を除く): 29588792

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 18917, 37834, 75668, 94585, 151336, 189170, 245921, 302672, 378340, 491842, 756680, 983684, 1229605, 1513360, 1967368, 2459210, 3934736, 4918420, 9836840, 19673680]

約数ペア:

[(1, 19673680), (2, 9836840), (4, 4918420), (5, 3934736), (8, 2459210), (10, 1967368), (13, 1513360), (16, 1229605), (20, 983684), (26, 756680), (40, 491842), (52, 378340), (65, 302672), (80, 245921), (104, 189170), (130, 151336), (208, 94585), (260, 75668), (520, 37834), (1040, 18917)]