51047240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20921}}^1$

素因数の和:20993

約数の個数: 32

約数和(自身を含む): 116744760

約数和(自身を除く): 65697520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 20921, 41842, 83684, 104605, 167368, 209210, 418420, 836840, 1276181, 2552362, 5104724, 6380905, 10209448, 12761810, 25523620, 51047240]

約数ペア:

[(1, 51047240), (2, 25523620), (4, 12761810), (5, 10209448), (8, 6380905), (10, 5104724), (20, 2552362), (40, 1276181), (61, 836840), (122, 418420), (244, 209210), (305, 167368), (488, 104605), (610, 83684), (1220, 41842), (2440, 20921)]