398427540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{2503}}^1$

素因数の和:2901

約数の個数: 96

約数和(自身を含む): 1278842880

約数和(自身を除く): 880415340

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 379, 420, 758, 1137, 1516, 1895, 2274, 2503, 2653, 3790, 4548, 5006, 5306, 5685, 7509, 7580, 7959, 10012, 10612, 11370, 12515, 13265, 15018, 15918, 17521, 22740, 25030, 26530, 30036, 31836, 35042, 37545, 39795, 50060, 52563, 53060, 70084, 75090, 79590, 87605, 105126, 150180, 159180, 175210, 210252, 262815, 350420, 525630, 948637, 1051260, 1897274, 2845911, 3794548, 4743185, 5691822, 6640459, 9486370, 11383644, 13280918, 14229555, 18972740, 19921377, 26561836, 28459110, 33202295, 39842754, 56918220, 66404590, 79685508, 99606885, 132809180, 199213770, 398427540]

約数ペア:

[(1, 398427540), (2, 199213770), (3, 132809180), (4, 99606885), (5, 79685508), (6, 66404590), (7, 56918220), (10, 39842754), (12, 33202295), (14, 28459110), (15, 26561836), (20, 19921377), (21, 18972740), (28, 14229555), (30, 13280918), (35, 11383644), (42, 9486370), (60, 6640459), (70, 5691822), (84, 4743185), (105, 3794548), (140, 2845911), (210, 1897274), (379, 1051260), (420, 948637), (758, 525630), (1137, 350420), (1516, 262815), (1895, 210252), (2274, 175210), (2503, 159180), (2653, 150180), (3790, 105126), (4548, 87605), (5006, 79590), (5306, 75090), (5685, 70084), (7509, 53060), (7580, 52563), (7959, 50060), (10012, 39795), (10612, 37545), (11370, 35042), (12515, 31836), (13265, 30036), (15018, 26530), (15918, 25030), (17521, 22740)]