290840620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{7393}}^1$

素因数の和:7690

約数の個数: 48

約数和(自身を含む): 700596288

約数和(自身を除く): 409755668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 562, 1124, 1405, 1967, 2810, 3934, 5620, 7393, 7868, 9835, 14786, 19670, 29572, 36965, 39340, 51751, 73930, 103502, 147860, 207004, 258755, 517510, 1035020, 2077433, 4154866, 8309732, 10387165, 14542031, 20774330, 29084062, 41548660, 58168124, 72710155, 145420310, 290840620]

約数ペア:

[(1, 290840620), (2, 145420310), (4, 72710155), (5, 58168124), (7, 41548660), (10, 29084062), (14, 20774330), (20, 14542031), (28, 10387165), (35, 8309732), (70, 4154866), (140, 2077433), (281, 1035020), (562, 517510), (1124, 258755), (1405, 207004), (1967, 147860), (2810, 103502), (3934, 73930), (5620, 51751), (7393, 39340), (7868, 36965), (9835, 29572), (14786, 19670)]