19929880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10601}}^1$

素因数の和:10659

約数の個数: 32

約数和(自身を含む): 45800640

約数和(自身を除く): 25870760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10601, 21202, 42404, 53005, 84808, 106010, 212020, 424040, 498247, 996494, 1992988, 2491235, 3985976, 4982470, 9964940, 19929880]

約数ペア:

[(1, 19929880), (2, 9964940), (4, 4982470), (5, 3985976), (8, 2491235), (10, 1992988), (20, 996494), (40, 498247), (47, 424040), (94, 212020), (188, 106010), (235, 84808), (376, 53005), (470, 42404), (940, 21202), (1880, 10601)]