71504680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{691}}^1$

素因数の和:914

約数の個数: 64

約数和(自身を含む): 174384000

約数和(自身を除く): 102879320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 199, 260, 398, 520, 691, 796, 995, 1382, 1592, 1990, 2587, 2764, 3455, 3980, 5174, 5528, 6910, 7960, 8983, 10348, 12935, 13820, 17966, 20696, 25870, 27640, 35932, 44915, 51740, 71864, 89830, 103480, 137509, 179660, 275018, 359320, 550036, 687545, 1100072, 1375090, 1787617, 2750180, 3575234, 5500360, 7150468, 8938085, 14300936, 17876170, 35752340, 71504680]

約数ペア:

[(1, 71504680), (2, 35752340), (4, 17876170), (5, 14300936), (8, 8938085), (10, 7150468), (13, 5500360), (20, 3575234), (26, 2750180), (40, 1787617), (52, 1375090), (65, 1100072), (104, 687545), (130, 550036), (199, 359320), (260, 275018), (398, 179660), (520, 137509), (691, 103480), (796, 89830), (995, 71864), (1382, 51740), (1592, 44915), (1990, 35932), (2587, 27640), (2764, 25870), (3455, 20696), (3980, 17966), (5174, 13820), (5528, 12935), (6910, 10348), (7960, 8983)]