15236840

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1217}}^1$

素因数の和:1541

約数の個数: 32

約数和(自身を含む): 34420680

約数和(自身を除く): 19183840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1217, 1252, 1565, 2434, 2504, 3130, 4868, 6085, 6260, 9736, 12170, 12520, 24340, 48680, 380921, 761842, 1523684, 1904605, 3047368, 3809210, 7618420, 15236840]

約数ペア:

[(1, 15236840), (2, 7618420), (4, 3809210), (5, 3047368), (8, 1904605), (10, 1523684), (20, 761842), (40, 380921), (313, 48680), (626, 24340), (1217, 12520), (1252, 12170), (1565, 9736), (2434, 6260), (2504, 6085), (3130, 4868)]