81462640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 160

約数和(自身を含む): 235699200

約数和(自身を除く): 154236560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 43, 56, 68, 70, 80, 85, 86, 112, 119, 136, 140, 170, 172, 199, 215, 238, 272, 280, 301, 340, 344, 398, 430, 476, 560, 595, 602, 680, 688, 731, 796, 860, 952, 995, 1190, 1204, 1360, 1393, 1462, 1505, 1592, 1720, 1904, 1990, 2380, 2408, 2786, 2924, 3010, 3184, 3383, 3440, 3655, 3980, 4760, 4816, 5117, 5572, 5848, 6020, 6766, 6965, 7310, 7960, 8557, 9520, 10234, 11144, 11696, 12040, 13532, 13930, 14620, 15920, 16915, 17114, 20468, 22288, 23681, 24080, 25585, 27064, 27860, 29240, 33830, 34228, 40936, 42785, 47362, 51170, 54128, 55720, 58480, 59899, 67660, 68456, 81872, 85570, 94724, 102340, 111440, 118405, 119798, 135320, 136912, 145469, 171140, 189448, 204680, 236810, 239596, 270640, 290938, 299495, 342280, 378896, 409360, 473620, 479192, 581876, 598990, 684560, 727345, 947240, 958384, 1018283, 1163752, 1197980, 1454690, 1894480, 2036566, 2327504, 2395960, 2909380, 4073132, 4791920, 5091415, 5818760, 8146264, 10182830, 11637520, 16292528, 20365660, 40731320, 81462640]

約数ペア:

[(1, 81462640), (2, 40731320), (4, 20365660), (5, 16292528), (7, 11637520), (8, 10182830), (10, 8146264), (14, 5818760), (16, 5091415), (17, 4791920), (20, 4073132), (28, 2909380), (34, 2395960), (35, 2327504), (40, 2036566), (43, 1894480), (56, 1454690), (68, 1197980), (70, 1163752), (80, 1018283), (85, 958384), (86, 947240), (112, 727345), (119, 684560), (136, 598990), (140, 581876), (170, 479192), (172, 473620), (199, 409360), (215, 378896), (238, 342280), (272, 299495), (280, 290938), (301, 270640), (340, 239596), (344, 236810), (398, 204680), (430, 189448), (476, 171140), (560, 145469), (595, 136912), (602, 135320), (680, 119798), (688, 118405), (731, 111440), (796, 102340), (860, 94724), (952, 85570), (995, 81872), (1190, 68456), (1204, 67660), (1360, 59899), (1393, 58480), (1462, 55720), (1505, 54128), (1592, 51170), (1720, 47362), (1904, 42785), (1990, 40936), (2380, 34228), (2408, 33830), (2786, 29240), (2924, 27860), (3010, 27064), (3184, 25585), (3383, 24080), (3440, 23681), (3655, 22288), (3980, 20468), (4760, 17114), (4816, 16915), (5117, 15920), (5572, 14620), (5848, 13930), (6020, 13532), (6766, 12040), (6965, 11696), (7310, 11144), (7960, 10234), (8557, 9520)]