51287320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:353

約数の個数: 96

約数和(自身を含む): 135924480

約数和(自身を除く): 84637160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 137, 140, 191, 196, 245, 274, 280, 382, 392, 490, 548, 685, 764, 955, 959, 980, 1096, 1337, 1370, 1528, 1910, 1918, 1960, 2674, 2740, 3820, 3836, 4795, 5348, 5480, 6685, 6713, 7640, 7672, 9359, 9590, 10696, 13370, 13426, 18718, 19180, 26167, 26740, 26852, 33565, 37436, 38360, 46795, 52334, 53480, 53704, 67130, 74872, 93590, 104668, 130835, 134260, 183169, 187180, 209336, 261670, 268520, 366338, 374360, 523340, 732676, 915845, 1046680, 1282183, 1465352, 1831690, 2564366, 3663380, 5128732, 6410915, 7326760, 10257464, 12821830, 25643660, 51287320]

約数ペア:

[(1, 51287320), (2, 25643660), (4, 12821830), (5, 10257464), (7, 7326760), (8, 6410915), (10, 5128732), (14, 3663380), (20, 2564366), (28, 1831690), (35, 1465352), (40, 1282183), (49, 1046680), (56, 915845), (70, 732676), (98, 523340), (137, 374360), (140, 366338), (191, 268520), (196, 261670), (245, 209336), (274, 187180), (280, 183169), (382, 134260), (392, 130835), (490, 104668), (548, 93590), (685, 74872), (764, 67130), (955, 53704), (959, 53480), (980, 52334), (1096, 46795), (1337, 38360), (1370, 37436), (1528, 33565), (1910, 26852), (1918, 26740), (1960, 26167), (2674, 19180), (2740, 18718), (3820, 13426), (3836, 13370), (4795, 10696), (5348, 9590), (5480, 9359), (6685, 7672), (6713, 7640)]