18716090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{239}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 16120390

約数列:

[1, 2, 5, 10, 41, 82, 191, 205, 239, 382, 410, 478, 955, 1195, 1910, 2390, 7831, 9799, 15662, 19598, 39155, 45649, 48995, 78310, 91298, 97990, 228245, 456490, 1871609, 3743218, 9358045, 18716090]

約数ペア:

[(1, 18716090), (2, 9358045), (5, 3743218), (10, 1871609), (41, 456490), (82, 228245), (191, 97990), (205, 91298), (239, 78310), (382, 48995), (410, 45649), (478, 39155), (955, 19598), (1195, 15662), (1910, 9799), (2390, 7831)]