18122790

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:637

約数の個数: 64

約数和(自身を含む): 50065920

約数和(自身を除く): 31943130

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 211, 409, 422, 633, 818, 1055, 1227, 1266, 1477, 2045, 2110, 2454, 2863, 2954, 3165, 4090, 4431, 5726, 6135, 6330, 7385, 8589, 8862, 12270, 14315, 14770, 17178, 22155, 28630, 42945, 44310, 85890, 86299, 172598, 258897, 431495, 517794, 604093, 862990, 1208186, 1294485, 1812279, 2588970, 3020465, 3624558, 6040930, 9061395, 18122790]

約数ペア:

[(1, 18122790), (2, 9061395), (3, 6040930), (5, 3624558), (6, 3020465), (7, 2588970), (10, 1812279), (14, 1294485), (15, 1208186), (21, 862990), (30, 604093), (35, 517794), (42, 431495), (70, 258897), (105, 172598), (210, 86299), (211, 85890), (409, 44310), (422, 42945), (633, 28630), (818, 22155), (1055, 17178), (1227, 14770), (1266, 14315), (1477, 12270), (2045, 8862), (2110, 8589), (2454, 7385), (2863, 6330), (2954, 6135), (3165, 5726), (4090, 4431)]