65236840

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{2011}}^1$

素因数の和:2833

約数の個数: 32

約数和(自身を含む): 147036960

約数和(自身を除く): 81800120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 2011, 3244, 4022, 4055, 6488, 8044, 8110, 10055, 16088, 16220, 20110, 32440, 40220, 80440, 1630921, 3261842, 6523684, 8154605, 13047368, 16309210, 32618420, 65236840]

約数ペア:

[(1, 65236840), (2, 32618420), (4, 16309210), (5, 13047368), (8, 8154605), (10, 6523684), (20, 3261842), (40, 1630921), (811, 80440), (1622, 40220), (2011, 32440), (3244, 20110), (4022, 16220), (4055, 16088), (6488, 10055), (8044, 8110)]