254640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1061}}^1$

素因数の和:1077

約数の個数: 40

約数和(自身を含む): 790128

約数和(自身を除く): 535488

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1061, 2122, 3183, 4244, 5305, 6366, 8488, 10610, 12732, 15915, 16976, 21220, 25464, 31830, 42440, 50928, 63660, 84880, 127320, 254640]

約数ペア:

[(1, 254640), (2, 127320), (3, 84880), (4, 63660), (5, 50928), (6, 42440), (8, 31830), (10, 25464), (12, 21220), (15, 16976), (16, 15915), (20, 12732), (24, 10610), (30, 8488), (40, 6366), (48, 5305), (60, 4244), (80, 3183), (120, 2122), (240, 1061)]