256085640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:364

約数の個数: 192

約数和(自身を含む): 867335040

約数和(自身を除く): 611249400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 43, 45, 60, 71, 72, 86, 90, 120, 129, 142, 172, 180, 213, 215, 233, 258, 284, 344, 355, 360, 387, 426, 430, 466, 516, 568, 639, 645, 699, 710, 774, 852, 860, 932, 1032, 1065, 1165, 1278, 1290, 1398, 1420, 1548, 1704, 1720, 1864, 1935, 2097, 2130, 2330, 2556, 2580, 2796, 2840, 3053, 3096, 3195, 3495, 3870, 4194, 4260, 4660, 5112, 5160, 5592, 6106, 6390, 6990, 7740, 8388, 8520, 9159, 9320, 10019, 10485, 12212, 12780, 13980, 15265, 15480, 16543, 16776, 18318, 20038, 20970, 24424, 25560, 27477, 27960, 30057, 30530, 33086, 36636, 40076, 41940, 45795, 49629, 50095, 54954, 60114, 61060, 66172, 73272, 80152, 82715, 83880, 90171, 91590, 99258, 100190, 109908, 120228, 122120, 132344, 137385, 148887, 150285, 165430, 180342, 183180, 198516, 200380, 219816, 240456, 248145, 274770, 297774, 300570, 330860, 360684, 366360, 397032, 400760, 450855, 496290, 549540, 595548, 601140, 661720, 711349, 721368, 744435, 901710, 992580, 1099080, 1191096, 1202280, 1422698, 1488870, 1803420, 1985160, 2134047, 2845396, 2977740, 3556745, 3606840, 4268094, 5690792, 5955480, 6402141, 7113490, 8536188, 10670235, 12804282, 14226980, 17072376, 21340470, 25608564, 28453960, 32010705, 42680940, 51217128, 64021410, 85361880, 128042820, 256085640]

約数ペア:

[(1, 256085640), (2, 128042820), (3, 85361880), (4, 64021410), (5, 51217128), (6, 42680940), (8, 32010705), (9, 28453960), (10, 25608564), (12, 21340470), (15, 17072376), (18, 14226980), (20, 12804282), (24, 10670235), (30, 8536188), (36, 7113490), (40, 6402141), (43, 5955480), (45, 5690792), (60, 4268094), (71, 3606840), (72, 3556745), (86, 2977740), (90, 2845396), (120, 2134047), (129, 1985160), (142, 1803420), (172, 1488870), (180, 1422698), (213, 1202280), (215, 1191096), (233, 1099080), (258, 992580), (284, 901710), (344, 744435), (355, 721368), (360, 711349), (387, 661720), (426, 601140), (430, 595548), (466, 549540), (516, 496290), (568, 450855), (639, 400760), (645, 397032), (699, 366360), (710, 360684), (774, 330860), (852, 300570), (860, 297774), (932, 274770), (1032, 248145), (1065, 240456), (1165, 219816), (1278, 200380), (1290, 198516), (1398, 183180), (1420, 180342), (1548, 165430), (1704, 150285), (1720, 148887), (1864, 137385), (1935, 132344), (2097, 122120), (2130, 120228), (2330, 109908), (2556, 100190), (2580, 99258), (2796, 91590), (2840, 90171), (3053, 83880), (3096, 82715), (3195, 80152), (3495, 73272), (3870, 66172), (4194, 61060), (4260, 60114), (4660, 54954), (5112, 50095), (5160, 49629), (5592, 45795), (6106, 41940), (6390, 40076), (6990, 36636), (7740, 33086), (8388, 30530), (8520, 30057), (9159, 27960), (9320, 27477), (10019, 25560), (10485, 24424), (12212, 20970), (12780, 20038), (13980, 18318), (15265, 16776), (15480, 16543)]