264520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 631800

約数和(自身を除く): 367280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 389, 680, 778, 1556, 1945, 3112, 3890, 6613, 7780, 13226, 15560, 26452, 33065, 52904, 66130, 132260, 264520]

約数ペア:

[(1, 264520), (2, 132260), (4, 66130), (5, 52904), (8, 33065), (10, 26452), (17, 15560), (20, 13226), (34, 7780), (40, 6613), (68, 3890), (85, 3112), (136, 1945), (170, 1556), (340, 778), (389, 680)]