420958720

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1$

素因数の和:195

約数の個数: 240

約数和(自身を含む): 1258044480

約数和(自身を除く): 837085760

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 139, 140, 160, 169, 182, 208, 224, 256, 260, 278, 280, 320, 338, 364, 416, 448, 455, 512, 520, 556, 560, 640, 676, 695, 728, 832, 845, 896, 910, 973, 1040, 1112, 1120, 1183, 1280, 1352, 1390, 1456, 1664, 1690, 1792, 1807, 1820, 1946, 2080, 2224, 2240, 2366, 2560, 2704, 2780, 2912, 3328, 3380, 3584, 3614, 3640, 3892, 4160, 4448, 4480, 4732, 4865, 5408, 5560, 5824, 5915, 6656, 6760, 7228, 7280, 7784, 8320, 8896, 8960, 9035, 9464, 9730, 10816, 11120, 11648, 11830, 12649, 13520, 14456, 14560, 15568, 16640, 17792, 17920, 18070, 18928, 19460, 21632, 22240, 23296, 23491, 23660, 25298, 27040, 28912, 29120, 31136, 33280, 35584, 36140, 37856, 38920, 43264, 44480, 46592, 46982, 47320, 50596, 54080, 57824, 58240, 62272, 63245, 71168, 72280, 75712, 77840, 86528, 88960, 93964, 94640, 101192, 108160, 115648, 116480, 117455, 124544, 126490, 144560, 151424, 155680, 164437, 177920, 187928, 189280, 202384, 216320, 231296, 232960, 234910, 249088, 252980, 289120, 302848, 311360, 328874, 355840, 375856, 378560, 404768, 432640, 462592, 469820, 498176, 505960, 578240, 605696, 622720, 657748, 751712, 757120, 809536, 822185, 925184, 939640, 1011920, 1156480, 1245440, 1315496, 1503424, 1514240, 1619072, 1644370, 1879280, 2023840, 2312960, 2490880, 2630992, 3006848, 3028480, 3238144, 3288740, 3758560, 4047680, 4625920, 5261984, 6013696, 6476288, 6577480, 7517120, 8095360, 10523968, 12027392, 13154960, 15034240, 16190720, 21047936, 26309920, 30068480, 32381440, 42095872, 52619840, 60136960, 84191744, 105239680, 210479360, 420958720]

約数ペア:

[(1, 420958720), (2, 210479360), (4, 105239680), (5, 84191744), (7, 60136960), (8, 52619840), (10, 42095872), (13, 32381440), (14, 30068480), (16, 26309920), (20, 21047936), (26, 16190720), (28, 15034240), (32, 13154960), (35, 12027392), (40, 10523968), (52, 8095360), (56, 7517120), (64, 6577480), (65, 6476288), (70, 6013696), (80, 5261984), (91, 4625920), (104, 4047680), (112, 3758560), (128, 3288740), (130, 3238144), (139, 3028480), (140, 3006848), (160, 2630992), (169, 2490880), (182, 2312960), (208, 2023840), (224, 1879280), (256, 1644370), (260, 1619072), (278, 1514240), (280, 1503424), (320, 1315496), (338, 1245440), (364, 1156480), (416, 1011920), (448, 939640), (455, 925184), (512, 822185), (520, 809536), (556, 757120), (560, 751712), (640, 657748), (676, 622720), (695, 605696), (728, 578240), (832, 505960), (845, 498176), (896, 469820), (910, 462592), (973, 432640), (1040, 404768), (1112, 378560), (1120, 375856), (1183, 355840), (1280, 328874), (1352, 311360), (1390, 302848), (1456, 289120), (1664, 252980), (1690, 249088), (1792, 234910), (1807, 232960), (1820, 231296), (1946, 216320), (2080, 202384), (2224, 189280), (2240, 187928), (2366, 177920), (2560, 164437), (2704, 155680), (2780, 151424), (2912, 144560), (3328, 126490), (3380, 124544), (3584, 117455), (3614, 116480), (3640, 115648), (3892, 108160), (4160, 101192), (4448, 94640), (4480, 93964), (4732, 88960), (4865, 86528), (5408, 77840), (5560, 75712), (5824, 72280), (5915, 71168), (6656, 63245), (6760, 62272), (7228, 58240), (7280, 57824), (7784, 54080), (8320, 50596), (8896, 47320), (8960, 46982), (9035, 46592), (9464, 44480), (9730, 43264), (10816, 38920), (11120, 37856), (11648, 36140), (11830, 35584), (12649, 33280), (13520, 31136), (14456, 29120), (14560, 28912), (15568, 27040), (16640, 25298), (17792, 23660), (17920, 23491), (18070, 23296), (18928, 22240), (19460, 21632)]