71998420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{276917}}^1$

素因数の和:276939

約数の個数: 24

約数和(自身を含む): 162827784

約数和(自身を除く): 90829364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 276917, 553834, 1107668, 1384585, 2769170, 3599921, 5538340, 7199842, 14399684, 17999605, 35999210, 71998420]

約数ペア:

[(1, 71998420), (2, 35999210), (4, 17999605), (5, 14399684), (10, 7199842), (13, 5538340), (20, 3599921), (26, 2769170), (52, 1384585), (65, 1107668), (130, 553834), (260, 276917)]