639969302

素因数分解:

$2^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{331}}^1$

素因数の和:637

約数の個数: 48

約数和(自身を含む): 1136575440

約数和(自身を除く): 496606138

約数列:

[1, 2, 7, 14, 49, 98, 109, 181, 218, 331, 362, 662, 763, 1267, 1526, 2317, 2534, 4634, 5341, 8869, 10682, 16219, 17738, 19729, 32438, 36079, 39458, 59911, 72158, 119822, 138103, 252553, 276206, 419377, 505106, 838754, 966721, 1767871, 1933442, 2935639, 3535742, 5871278, 6530299, 13060598, 45712093, 91424186, 319984651, 639969302]

約数ペア:

[(1, 639969302), (2, 319984651), (7, 91424186), (14, 45712093), (49, 13060598), (98, 6530299), (109, 5871278), (181, 3535742), (218, 2935639), (331, 1933442), (362, 1767871), (662, 966721), (763, 838754), (1267, 505106), (1526, 419377), (2317, 276206), (2534, 252553), (4634, 138103), (5341, 119822), (8869, 72158), (10682, 59911), (16219, 39458), (17738, 36079), (19729, 32438)]