281566520

素因数分解:

$2^3\times 5^1\times {\mathrm{233}}^1\times {\mathrm{30211}}^1$

素因数の和:30455

約数の個数: 32

約数和(自身を含む): 636264720

約数和(自身を除く): 354698200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 233, 466, 932, 1165, 1864, 2330, 4660, 9320, 30211, 60422, 120844, 151055, 241688, 302110, 604220, 1208440, 7039163, 14078326, 28156652, 35195815, 56313304, 70391630, 140783260, 281566520]

約数ペア:

[(1, 281566520), (2, 140783260), (4, 70391630), (5, 56313304), (8, 35195815), (10, 28156652), (20, 14078326), (40, 7039163), (233, 1208440), (466, 604220), (932, 302110), (1165, 241688), (1864, 151055), (2330, 120844), (4660, 60422), (9320, 30211)]