257163280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{292231}}^1$

素因数の和:292255

約数の個数: 40

約数和(自身を含む): 652261824

約数和(自身を除く): 395098544

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 292231, 584462, 1168924, 1461155, 2337848, 2922310, 3214541, 4675696, 5844620, 6429082, 11689240, 12858164, 16072705, 23378480, 25716328, 32145410, 51432656, 64290820, 128581640, 257163280]

約数ペア:

[(1, 257163280), (2, 128581640), (4, 64290820), (5, 51432656), (8, 32145410), (10, 25716328), (11, 23378480), (16, 16072705), (20, 12858164), (22, 11689240), (40, 6429082), (44, 5844620), (55, 4675696), (80, 3214541), (88, 2922310), (110, 2337848), (176, 1461155), (220, 1168924), (440, 584462), (880, 292231)]