18410860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{419}}^1$

素因数の和:467

約数の個数: 48

約数和(自身を含む): 41983200

約数和(自身を除く): 23572340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 419, 676, 838, 845, 1676, 1690, 2095, 2197, 3380, 4190, 4394, 5447, 8380, 8788, 10894, 10985, 21788, 21970, 27235, 43940, 54470, 70811, 108940, 141622, 283244, 354055, 708110, 920543, 1416220, 1841086, 3682172, 4602715, 9205430, 18410860]

約数ペア:

[(1, 18410860), (2, 9205430), (4, 4602715), (5, 3682172), (10, 1841086), (13, 1416220), (20, 920543), (26, 708110), (52, 354055), (65, 283244), (130, 141622), (169, 108940), (260, 70811), (338, 54470), (419, 43940), (676, 27235), (838, 21970), (845, 21788), (1676, 10985), (1690, 10894), (2095, 8788), (2197, 8380), (3380, 5447), (4190, 4394)]