123453040

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{3967}}^1$

素因数の和:4369

約数の個数: 40

約数和(自身を含む): 287838720

約数和(自身を除く): 164385680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1945, 3112, 3890, 3967, 6224, 7780, 7934, 15560, 15868, 19835, 31120, 31736, 39670, 63472, 79340, 158680, 317360, 1543163, 3086326, 6172652, 7715815, 12345304, 15431630, 24690608, 30863260, 61726520, 123453040]

約数ペア:

[(1, 123453040), (2, 61726520), (4, 30863260), (5, 24690608), (8, 15431630), (10, 12345304), (16, 7715815), (20, 6172652), (40, 3086326), (80, 1543163), (389, 317360), (778, 158680), (1556, 79340), (1945, 63472), (3112, 39670), (3890, 31736), (3967, 31120), (6224, 19835), (7780, 15868), (7934, 15560)]