18767320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 52799040

約数和(自身を除く): 34031720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 17, 20, 22, 26, 34, 40, 44, 52, 55, 65, 68, 85, 88, 104, 110, 130, 136, 143, 170, 187, 193, 220, 221, 260, 286, 340, 374, 386, 440, 442, 520, 572, 680, 715, 748, 772, 884, 935, 965, 1105, 1144, 1430, 1496, 1544, 1768, 1870, 1930, 2123, 2210, 2431, 2509, 2860, 3281, 3740, 3860, 4246, 4420, 4862, 5018, 5720, 6562, 7480, 7720, 8492, 8840, 9724, 10036, 10615, 12155, 12545, 13124, 16405, 16984, 19448, 20072, 21230, 24310, 25090, 26248, 27599, 32810, 36091, 42460, 42653, 48620, 50180, 55198, 65620, 72182, 84920, 85306, 97240, 100360, 110396, 131240, 137995, 144364, 170612, 180455, 213265, 220792, 275990, 288728, 341224, 360910, 426530, 469183, 551980, 721820, 853060, 938366, 1103960, 1443640, 1706120, 1876732, 2345915, 3753464, 4691830, 9383660, 18767320]

約数ペア:

[(1, 18767320), (2, 9383660), (4, 4691830), (5, 3753464), (8, 2345915), (10, 1876732), (11, 1706120), (13, 1443640), (17, 1103960), (20, 938366), (22, 853060), (26, 721820), (34, 551980), (40, 469183), (44, 426530), (52, 360910), (55, 341224), (65, 288728), (68, 275990), (85, 220792), (88, 213265), (104, 180455), (110, 170612), (130, 144364), (136, 137995), (143, 131240), (170, 110396), (187, 100360), (193, 97240), (220, 85306), (221, 84920), (260, 72182), (286, 65620), (340, 55198), (374, 50180), (386, 48620), (440, 42653), (442, 42460), (520, 36091), (572, 32810), (680, 27599), (715, 26248), (748, 25090), (772, 24310), (884, 21230), (935, 20072), (965, 19448), (1105, 16984), (1144, 16405), (1430, 13124), (1496, 12545), (1544, 12155), (1768, 10615), (1870, 10036), (1930, 9724), (2123, 8840), (2210, 8492), (2431, 7720), (2509, 7480), (2860, 6562), (3281, 5720), (3740, 5018), (3860, 4862), (4246, 4420)]