1297148840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2494517}}^1$

素因数の和:2494541

約数の個数: 32

約数和(自身を含む): 3143092680

約数和(自身を除く): 1845943840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2494517, 4989034, 9978068, 12472585, 19956136, 24945170, 32428721, 49890340, 64857442, 99780680, 129714884, 162143605, 259429768, 324287210, 648574420, 1297148840]

約数ペア:

[(1, 1297148840), (2, 648574420), (4, 324287210), (5, 259429768), (8, 162143605), (10, 129714884), (13, 99780680), (20, 64857442), (26, 49890340), (40, 32428721), (52, 24945170), (65, 19956136), (104, 12472585), (130, 9978068), (260, 4989034), (520, 2494517)]