217394520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{258803}}^1$

素因数の和:258824

約数の個数: 64

約数和(自身を含む): 745355520

約数和(自身を除く): 527961000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 258803, 517606, 776409, 1035212, 1294015, 1552818, 1811621, 2070424, 2588030, 3105636, 3623242, 3882045, 5176060, 5434863, 6211272, 7246484, 7764090, 9058105, 10352120, 10869726, 14492968, 15528180, 18116210, 21739452, 27174315, 31056360, 36232420, 43478904, 54348630, 72464840, 108697260, 217394520]

約数ペア:

[(1, 217394520), (2, 108697260), (3, 72464840), (4, 54348630), (5, 43478904), (6, 36232420), (7, 31056360), (8, 27174315), (10, 21739452), (12, 18116210), (14, 15528180), (15, 14492968), (20, 10869726), (21, 10352120), (24, 9058105), (28, 7764090), (30, 7246484), (35, 6211272), (40, 5434863), (42, 5176060), (56, 3882045), (60, 3623242), (70, 3105636), (84, 2588030), (105, 2070424), (120, 1811621), (140, 1552818), (168, 1294015), (210, 1035212), (280, 776409), (420, 517606), (840, 258803)]