1640656

素因数分解:

$2^4\times {\mathrm{41}}^2\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 30

約数和(自身を含む): 3311606

約数和(自身を除く): 1670950

約数列:

[1, 2, 4, 8, 16, 41, 61, 82, 122, 164, 244, 328, 488, 656, 976, 1681, 2501, 3362, 5002, 6724, 10004, 13448, 20008, 26896, 40016, 102541, 205082, 410164, 820328, 1640656]

約数ペア:

[(1, 1640656), (2, 820328), (4, 410164), (8, 205082), (16, 102541), (41, 40016), (61, 26896), (82, 20008), (122, 13448), (164, 10004), (244, 6724), (328, 5002), (488, 3362), (656, 2501), (976, 1681)]