20874291240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{687559}}^1$

素因数の和:687607

約数の個数: 128

約数和(自身を含む): 71286220800

約数和(自身を除く): 50411929560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 23, 24, 30, 33, 40, 44, 46, 55, 60, 66, 69, 88, 92, 110, 115, 120, 132, 138, 165, 184, 220, 230, 253, 264, 276, 330, 345, 440, 460, 506, 552, 660, 690, 759, 920, 1012, 1265, 1320, 1380, 1518, 2024, 2530, 2760, 3036, 3795, 5060, 6072, 7590, 10120, 15180, 30360, 687559, 1375118, 2062677, 2750236, 3437795, 4125354, 5500472, 6875590, 7563149, 8250708, 10313385, 13751180, 15126298, 15813857, 16501416, 20626770, 22689447, 27502360, 30252596, 31627714, 37815745, 41253540, 45378894, 47441571, 60505192, 63255428, 75631490, 79069285, 82507080, 90757788, 94883142, 113447235, 126510856, 151262980, 158138570, 173952427, 181515576, 189766284, 226894470, 237207855, 302525960, 316277140, 347904854, 379532568, 453788940, 474415710, 521857281, 632554280, 695809708, 869762135, 907577880, 948831420, 1043714562, 1391619416, 1739524270, 1897662840, 2087429124, 2609286405, 3479048540, 4174858248, 5218572810, 6958097080, 10437145620, 20874291240]

約数ペア:

[(1, 20874291240), (2, 10437145620), (3, 6958097080), (4, 5218572810), (5, 4174858248), (6, 3479048540), (8, 2609286405), (10, 2087429124), (11, 1897662840), (12, 1739524270), (15, 1391619416), (20, 1043714562), (22, 948831420), (23, 907577880), (24, 869762135), (30, 695809708), (33, 632554280), (40, 521857281), (44, 474415710), (46, 453788940), (55, 379532568), (60, 347904854), (66, 316277140), (69, 302525960), (88, 237207855), (92, 226894470), (110, 189766284), (115, 181515576), (120, 173952427), (132, 158138570), (138, 151262980), (165, 126510856), (184, 113447235), (220, 94883142), (230, 90757788), (253, 82507080), (264, 79069285), (276, 75631490), (330, 63255428), (345, 60505192), (440, 47441571), (460, 45378894), (506, 41253540), (552, 37815745), (660, 31627714), (690, 30252596), (759, 27502360), (920, 22689447), (1012, 20626770), (1265, 16501416), (1320, 15813857), (1380, 15126298), (1518, 13751180), (2024, 10313385), (2530, 8250708), (2760, 7563149), (3036, 6875590), (3795, 5500472), (5060, 4125354), (6072, 3437795), (7590, 2750236), (10120, 2062677), (15180, 1375118), (30360, 687559)]