15721728400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{802129}}^1$

素因数の和:802161

約数の個数: 90

約数和(自身を含む): 43938275010

約数和(自身を除く): 28216546610

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 80, 98, 100, 112, 140, 175, 196, 200, 245, 280, 350, 392, 400, 490, 560, 700, 784, 980, 1225, 1400, 1960, 2450, 2800, 3920, 4900, 9800, 19600, 802129, 1604258, 3208516, 4010645, 5614903, 6417032, 8021290, 11229806, 12834064, 16042580, 20053225, 22459612, 28074515, 32085160, 39304321, 40106450, 44919224, 56149030, 64170320, 78608642, 80212900, 89838448, 112298060, 140372575, 157217284, 160425800, 196521605, 224596120, 280745150, 314434568, 320851600, 393043210, 449192240, 561490300, 628869136, 786086420, 982608025, 1122980600, 1572172840, 1965216050, 2245961200, 3144345680, 3930432100, 7860864200, 15721728400]

約数ペア:

[(1, 15721728400), (2, 7860864200), (4, 3930432100), (5, 3144345680), (7, 2245961200), (8, 1965216050), (10, 1572172840), (14, 1122980600), (16, 982608025), (20, 786086420), (25, 628869136), (28, 561490300), (35, 449192240), (40, 393043210), (49, 320851600), (50, 314434568), (56, 280745150), (70, 224596120), (80, 196521605), (98, 160425800), (100, 157217284), (112, 140372575), (140, 112298060), (175, 89838448), (196, 80212900), (200, 78608642), (245, 64170320), (280, 56149030), (350, 44919224), (392, 40106450), (400, 39304321), (490, 32085160), (560, 28074515), (700, 22459612), (784, 20053225), (980, 16042580), (1225, 12834064), (1400, 11229806), (1960, 8021290), (2450, 6417032), (2800, 5614903), (3920, 4010645), (4900, 3208516), (9800, 1604258), (19600, 802129)]