38456840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15761}}^1$

素因数の和:15833

約数の個数: 32

約数和(自身を含む): 87951960

約数和(自身を除く): 49495120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 15761, 31522, 63044, 78805, 126088, 157610, 315220, 630440, 961421, 1922842, 3845684, 4807105, 7691368, 9614210, 19228420, 38456840]

約数ペア:

[(1, 38456840), (2, 19228420), (4, 9614210), (5, 7691368), (8, 4807105), (10, 3845684), (20, 1922842), (40, 961421), (61, 630440), (122, 315220), (244, 157610), (305, 126088), (488, 78805), (610, 63044), (1220, 31522), (2440, 15761)]