201716840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{387917}}^1$

素因数の和:387941

約数の個数: 32

約数和(自身を含む): 488776680

約数和(自身を除く): 287059840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 387917, 775834, 1551668, 1939585, 3103336, 3879170, 5042921, 7758340, 10085842, 15516680, 20171684, 25214605, 40343368, 50429210, 100858420, 201716840]

約数ペア:

[(1, 201716840), (2, 100858420), (4, 50429210), (5, 40343368), (8, 25214605), (10, 20171684), (13, 15516680), (20, 10085842), (26, 7758340), (40, 5042921), (52, 3879170), (65, 3103336), (104, 1939585), (130, 1551668), (260, 775834), (520, 387917)]