19872960

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:310

約数の個数: 112

約数和(自身を含む): 63983616

約数和(自身を除く): 44110656

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 127, 160, 163, 192, 240, 254, 320, 326, 381, 480, 489, 508, 635, 652, 762, 815, 960, 978, 1016, 1270, 1304, 1524, 1630, 1905, 1956, 2032, 2445, 2540, 2608, 3048, 3260, 3810, 3912, 4064, 4890, 5080, 5216, 6096, 6520, 7620, 7824, 8128, 9780, 10160, 10432, 12192, 13040, 15240, 15648, 19560, 20320, 20701, 24384, 26080, 30480, 31296, 39120, 40640, 41402, 52160, 60960, 62103, 78240, 82804, 103505, 121920, 124206, 156480, 165608, 207010, 248412, 310515, 331216, 414020, 496824, 621030, 662432, 828040, 993648, 1242060, 1324864, 1656080, 1987296, 2484120, 3312160, 3974592, 4968240, 6624320, 9936480, 19872960]

約数ペア:

[(1, 19872960), (2, 9936480), (3, 6624320), (4, 4968240), (5, 3974592), (6, 3312160), (8, 2484120), (10, 1987296), (12, 1656080), (15, 1324864), (16, 1242060), (20, 993648), (24, 828040), (30, 662432), (32, 621030), (40, 496824), (48, 414020), (60, 331216), (64, 310515), (80, 248412), (96, 207010), (120, 165608), (127, 156480), (160, 124206), (163, 121920), (192, 103505), (240, 82804), (254, 78240), (320, 62103), (326, 60960), (381, 52160), (480, 41402), (489, 40640), (508, 39120), (635, 31296), (652, 30480), (762, 26080), (815, 24384), (960, 20701), (978, 20320), (1016, 19560), (1270, 15648), (1304, 15240), (1524, 13040), (1630, 12192), (1905, 10432), (1956, 10160), (2032, 9780), (2445, 8128), (2540, 7824), (2608, 7620), (3048, 6520), (3260, 6096), (3810, 5216), (3912, 5080), (4064, 4890)]