20488650

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:133

約数の個数: 192

約数和(自身を含む): 66662400

約数和(自身を除く): 46173750

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 19, 21, 25, 26, 30, 35, 38, 39, 42, 50, 57, 65, 70, 75, 78, 79, 91, 95, 105, 114, 130, 133, 150, 158, 175, 182, 190, 195, 210, 237, 247, 266, 273, 285, 325, 350, 390, 395, 399, 455, 474, 475, 494, 525, 546, 553, 570, 650, 665, 741, 790, 798, 910, 950, 975, 1027, 1050, 1106, 1185, 1235, 1330, 1365, 1425, 1482, 1501, 1659, 1729, 1950, 1975, 1995, 2054, 2275, 2370, 2470, 2730, 2765, 2850, 3002, 3081, 3318, 3325, 3458, 3705, 3950, 3990, 4503, 4550, 5135, 5187, 5530, 5925, 6162, 6175, 6650, 6825, 7189, 7410, 7505, 8295, 8645, 9006, 9975, 10270, 10374, 10507, 11850, 12350, 13650, 13825, 14378, 15010, 15405, 16590, 17290, 18525, 19513, 19950, 21014, 21567, 22515, 25675, 25935, 27650, 30810, 31521, 35945, 37050, 37525, 39026, 41475, 43134, 43225, 45030, 51350, 51870, 52535, 58539, 63042, 71890, 75050, 77025, 82950, 86450, 97565, 105070, 107835, 112575, 117078, 129675, 136591, 154050, 157605, 179725, 195130, 215670, 225150, 259350, 262675, 273182, 292695, 315210, 359450, 409773, 487825, 525350, 539175, 585390, 682955, 788025, 819546, 975650, 1078350, 1365910, 1463475, 1576050, 2048865, 2926950, 3414775, 4097730, 6829550, 10244325, 20488650]

約数ペア:

[(1, 20488650), (2, 10244325), (3, 6829550), (5, 4097730), (6, 3414775), (7, 2926950), (10, 2048865), (13, 1576050), (14, 1463475), (15, 1365910), (19, 1078350), (21, 975650), (25, 819546), (26, 788025), (30, 682955), (35, 585390), (38, 539175), (39, 525350), (42, 487825), (50, 409773), (57, 359450), (65, 315210), (70, 292695), (75, 273182), (78, 262675), (79, 259350), (91, 225150), (95, 215670), (105, 195130), (114, 179725), (130, 157605), (133, 154050), (150, 136591), (158, 129675), (175, 117078), (182, 112575), (190, 107835), (195, 105070), (210, 97565), (237, 86450), (247, 82950), (266, 77025), (273, 75050), (285, 71890), (325, 63042), (350, 58539), (390, 52535), (395, 51870), (399, 51350), (455, 45030), (474, 43225), (475, 43134), (494, 41475), (525, 39026), (546, 37525), (553, 37050), (570, 35945), (650, 31521), (665, 30810), (741, 27650), (790, 25935), (798, 25675), (910, 22515), (950, 21567), (975, 21014), (1027, 19950), (1050, 19513), (1106, 18525), (1185, 17290), (1235, 16590), (1330, 15405), (1365, 15010), (1425, 14378), (1482, 13825), (1501, 13650), (1659, 12350), (1729, 11850), (1950, 10507), (1975, 10374), (1995, 10270), (2054, 9975), (2275, 9006), (2370, 8645), (2470, 8295), (2730, 7505), (2765, 7410), (2850, 7189), (3002, 6825), (3081, 6650), (3318, 6175), (3325, 6162), (3458, 5925), (3705, 5530), (3950, 5187), (3990, 5135), (4503, 4550)]