420210840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{233}}^1$

素因数の和:386

約数の個数: 256

約数和(自身を含む): 1536537600

約数和(自身を除く): 1116326760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 113, 114, 120, 133, 140, 152, 168, 190, 210, 226, 228, 233, 266, 280, 285, 339, 380, 399, 420, 452, 456, 466, 532, 565, 570, 665, 678, 699, 760, 791, 798, 840, 904, 932, 1064, 1130, 1140, 1165, 1330, 1356, 1398, 1582, 1596, 1631, 1695, 1864, 1995, 2147, 2260, 2280, 2330, 2373, 2660, 2712, 2796, 3164, 3192, 3262, 3390, 3495, 3955, 3990, 4294, 4427, 4520, 4660, 4746, 4893, 5320, 5592, 6328, 6441, 6524, 6780, 6990, 7910, 7980, 8155, 8588, 8854, 9320, 9492, 9786, 10735, 11865, 12882, 13048, 13281, 13560, 13980, 15029, 15820, 15960, 16310, 17176, 17708, 18984, 19572, 21470, 22135, 23730, 24465, 25764, 26329, 26562, 27960, 30058, 30989, 31640, 32205, 32620, 35416, 39144, 42940, 44270, 45087, 47460, 48930, 51528, 52658, 53124, 60116, 61978, 64410, 65240, 66405, 75145, 78987, 85880, 88540, 90174, 92967, 94920, 97860, 105316, 106248, 120232, 123956, 128820, 131645, 132810, 150290, 154945, 157974, 177080, 180348, 184303, 185934, 195720, 210632, 225435, 247912, 257640, 263290, 265620, 300580, 309890, 315948, 360696, 368606, 371868, 394935, 450870, 464835, 500251, 526580, 531240, 552909, 601160, 619780, 631896, 737212, 743736, 789870, 901740, 921515, 929670, 1000502, 1053160, 1105818, 1239560, 1474424, 1500753, 1579740, 1803480, 1843030, 1859340, 2001004, 2211636, 2501255, 2764545, 3001506, 3159480, 3501757, 3686060, 3718680, 4002008, 4423272, 5002510, 5529090, 6003012, 7003514, 7372120, 7503765, 10005020, 10505271, 11058180, 12006024, 14007028, 15007530, 17508785, 20010040, 21010542, 22116360, 28014056, 30015060, 35017570, 42021084, 52526355, 60030120, 70035140, 84042168, 105052710, 140070280, 210105420, 420210840]

約数ペア:

[(1, 420210840), (2, 210105420), (3, 140070280), (4, 105052710), (5, 84042168), (6, 70035140), (7, 60030120), (8, 52526355), (10, 42021084), (12, 35017570), (14, 30015060), (15, 28014056), (19, 22116360), (20, 21010542), (21, 20010040), (24, 17508785), (28, 15007530), (30, 14007028), (35, 12006024), (38, 11058180), (40, 10505271), (42, 10005020), (56, 7503765), (57, 7372120), (60, 7003514), (70, 6003012), (76, 5529090), (84, 5002510), (95, 4423272), (105, 4002008), (113, 3718680), (114, 3686060), (120, 3501757), (133, 3159480), (140, 3001506), (152, 2764545), (168, 2501255), (190, 2211636), (210, 2001004), (226, 1859340), (228, 1843030), (233, 1803480), (266, 1579740), (280, 1500753), (285, 1474424), (339, 1239560), (380, 1105818), (399, 1053160), (420, 1000502), (452, 929670), (456, 921515), (466, 901740), (532, 789870), (565, 743736), (570, 737212), (665, 631896), (678, 619780), (699, 601160), (760, 552909), (791, 531240), (798, 526580), (840, 500251), (904, 464835), (932, 450870), (1064, 394935), (1130, 371868), (1140, 368606), (1165, 360696), (1330, 315948), (1356, 309890), (1398, 300580), (1582, 265620), (1596, 263290), (1631, 257640), (1695, 247912), (1864, 225435), (1995, 210632), (2147, 195720), (2260, 185934), (2280, 184303), (2330, 180348), (2373, 177080), (2660, 157974), (2712, 154945), (2796, 150290), (3164, 132810), (3192, 131645), (3262, 128820), (3390, 123956), (3495, 120232), (3955, 106248), (3990, 105316), (4294, 97860), (4427, 94920), (4520, 92967), (4660, 90174), (4746, 88540), (4893, 85880), (5320, 78987), (5592, 75145), (6328, 66405), (6441, 65240), (6524, 64410), (6780, 61978), (6990, 60116), (7910, 53124), (7980, 52658), (8155, 51528), (8588, 48930), (8854, 47460), (9320, 45087), (9492, 44270), (9786, 42940), (10735, 39144), (11865, 35416), (12882, 32620), (13048, 32205), (13281, 31640), (13560, 30989), (13980, 30058), (15029, 27960), (15820, 26562), (15960, 26329), (16310, 25764), (17176, 24465), (17708, 23730), (18984, 22135), (19572, 21470)]