4172840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{2129}}^1$

素因数の和:2154

約数の個数: 48

約数和(自身を含む): 10926900

約数和(自身を除く): 6754060

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 2129, 4258, 8516, 10645, 14903, 17032, 21290, 29806, 42580, 59612, 74515, 85160, 104321, 119224, 149030, 208642, 298060, 417284, 521605, 596120, 834568, 1043210, 2086420, 4172840]

約数ペア:

[(1, 4172840), (2, 2086420), (4, 1043210), (5, 834568), (7, 596120), (8, 521605), (10, 417284), (14, 298060), (20, 208642), (28, 149030), (35, 119224), (40, 104321), (49, 85160), (56, 74515), (70, 59612), (98, 42580), (140, 29806), (196, 21290), (245, 17032), (280, 14903), (392, 10645), (490, 8516), (980, 4258), (1960, 2129)]