13918120

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{997}}^1$

素因数の和:1357

約数の個数: 32

約数和(自身を含む): 31437000

約数和(自身を除く): 17518880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 997, 1396, 1745, 1994, 2792, 3490, 3988, 4985, 6980, 7976, 9970, 13960, 19940, 39880, 347953, 695906, 1391812, 1739765, 2783624, 3479530, 6959060, 13918120]

約数ペア:

[(1, 13918120), (2, 6959060), (4, 3479530), (5, 2783624), (8, 1739765), (10, 1391812), (20, 695906), (40, 347953), (349, 39880), (698, 19940), (997, 13960), (1396, 9970), (1745, 7976), (1994, 6980), (2792, 4985), (3490, 3988)]