61649980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{2087}}^1$

素因数の和:2314

約数の個数: 48

約数和(自身を含む): 148732416

約数和(自身を除く): 87082436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2087, 2110, 2954, 4174, 4220, 5908, 7385, 8348, 10435, 14609, 14770, 20870, 29218, 29540, 41740, 58436, 73045, 146090, 292180, 440357, 880714, 1761428, 2201785, 3082499, 4403570, 6164998, 8807140, 12329996, 15412495, 30824990, 61649980]

約数ペア:

[(1, 61649980), (2, 30824990), (4, 15412495), (5, 12329996), (7, 8807140), (10, 6164998), (14, 4403570), (20, 3082499), (28, 2201785), (35, 1761428), (70, 880714), (140, 440357), (211, 292180), (422, 146090), (844, 73045), (1055, 58436), (1477, 41740), (2087, 29540), (2110, 29218), (2954, 20870), (4174, 14770), (4220, 14609), (5908, 10435), (7385, 8348)]