65456840

素因数分解:

$2^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{9041}}^1$

素因数の和:9233

約数の個数: 32

約数和(自身を含む): 148107960

約数和(自身を除く): 82651120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 181, 362, 724, 905, 1448, 1810, 3620, 7240, 9041, 18082, 36164, 45205, 72328, 90410, 180820, 361640, 1636421, 3272842, 6545684, 8182105, 13091368, 16364210, 32728420, 65456840]

約数ペア:

[(1, 65456840), (2, 32728420), (4, 16364210), (5, 13091368), (8, 8182105), (10, 6545684), (20, 3272842), (40, 1636421), (181, 361640), (362, 180820), (724, 90410), (905, 72328), (1448, 45205), (1810, 36164), (3620, 18082), (7240, 9041)]