2018281720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2903}}^1$

素因数の和:3125

約数の個数: 128

約数和(自身を含む): 5620285440

約数和(自身を除く): 3602003720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 191, 260, 280, 364, 382, 455, 520, 728, 764, 910, 955, 1337, 1528, 1820, 1910, 2483, 2674, 2903, 3640, 3820, 4966, 5348, 5806, 6685, 7640, 9932, 10696, 11612, 12415, 13370, 14515, 17381, 19864, 20321, 23224, 24830, 26740, 29030, 34762, 37739, 40642, 49660, 53480, 58060, 69524, 75478, 81284, 86905, 99320, 101605, 116120, 139048, 150956, 162568, 173810, 188695, 203210, 264173, 301912, 347620, 377390, 406420, 528346, 554473, 695240, 754780, 812840, 1056692, 1108946, 1320865, 1509560, 2113384, 2217892, 2641730, 2772365, 3881311, 4435784, 5283460, 5544730, 7208149, 7762622, 10566920, 11089460, 14416298, 15525244, 19406555, 22178920, 28832596, 31050488, 36040745, 38813110, 50457043, 57665192, 72081490, 77626220, 100914086, 144162980, 155252440, 201828172, 252285215, 288325960, 403656344, 504570430, 1009140860, 2018281720]

約数ペア:

[(1, 2018281720), (2, 1009140860), (4, 504570430), (5, 403656344), (7, 288325960), (8, 252285215), (10, 201828172), (13, 155252440), (14, 144162980), (20, 100914086), (26, 77626220), (28, 72081490), (35, 57665192), (40, 50457043), (52, 38813110), (56, 36040745), (65, 31050488), (70, 28832596), (91, 22178920), (104, 19406555), (130, 15525244), (140, 14416298), (182, 11089460), (191, 10566920), (260, 7762622), (280, 7208149), (364, 5544730), (382, 5283460), (455, 4435784), (520, 3881311), (728, 2772365), (764, 2641730), (910, 2217892), (955, 2113384), (1337, 1509560), (1528, 1320865), (1820, 1108946), (1910, 1056692), (2483, 812840), (2674, 754780), (2903, 695240), (3640, 554473), (3820, 528346), (4966, 406420), (5348, 377390), (5806, 347620), (6685, 301912), (7640, 264173), (9932, 203210), (10696, 188695), (11612, 173810), (12415, 162568), (13370, 150956), (14515, 139048), (17381, 116120), (19864, 101605), (20321, 99320), (23224, 86905), (24830, 81284), (26740, 75478), (29030, 69524), (34762, 58060), (37739, 53480), (40642, 49660)]