291212240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{17417}}^1$

素因数の和:17460

約数の個数: 80

約数和(自身を含む): 777539520

約数和(自身を除く): 486327280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 760, 836, 880, 1045, 1520, 1672, 2090, 3344, 4180, 8360, 16720, 17417, 34834, 69668, 87085, 139336, 174170, 191587, 278672, 330923, 348340, 383174, 661846, 696680, 766348, 957935, 1323692, 1393360, 1532696, 1654615, 1915870, 2647384, 3065392, 3309230, 3640153, 3831740, 5294768, 6618460, 7280306, 7663480, 13236920, 14560612, 15326960, 18200765, 26473840, 29121224, 36401530, 58242448, 72803060, 145606120, 291212240]

約数ペア:

[(1, 291212240), (2, 145606120), (4, 72803060), (5, 58242448), (8, 36401530), (10, 29121224), (11, 26473840), (16, 18200765), (19, 15326960), (20, 14560612), (22, 13236920), (38, 7663480), (40, 7280306), (44, 6618460), (55, 5294768), (76, 3831740), (80, 3640153), (88, 3309230), (95, 3065392), (110, 2647384), (152, 1915870), (176, 1654615), (190, 1532696), (209, 1393360), (220, 1323692), (304, 957935), (380, 766348), (418, 696680), (440, 661846), (760, 383174), (836, 348340), (880, 330923), (1045, 278672), (1520, 191587), (1672, 174170), (2090, 139336), (3344, 87085), (4180, 69668), (8360, 34834), (16720, 17417)]