85338820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1567}}^1$

素因数の和:1972

約数の個数: 48

約数和(自身を含む): 205470720

約数和(自身を除く): 120131900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 389, 778, 1556, 1567, 1945, 2723, 3134, 3890, 5446, 6268, 7780, 7835, 10892, 10969, 13615, 15670, 21938, 27230, 31340, 43876, 54460, 54845, 109690, 219380, 609563, 1219126, 2438252, 3047815, 4266941, 6095630, 8533882, 12191260, 17067764, 21334705, 42669410, 85338820]

約数ペア:

[(1, 85338820), (2, 42669410), (4, 21334705), (5, 17067764), (7, 12191260), (10, 8533882), (14, 6095630), (20, 4266941), (28, 3047815), (35, 2438252), (70, 1219126), (140, 609563), (389, 219380), (778, 109690), (1556, 54845), (1567, 54460), (1945, 43876), (2723, 31340), (3134, 27230), (3890, 21938), (5446, 15670), (6268, 13615), (7780, 10969), (7835, 10892)]