139423760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{248971}}^1$

素因数の和:248991

約数の個数: 40

約数和(自身を含む): 370470336

約数和(自身を除く): 231046576

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 248971, 497942, 995884, 1244855, 1742797, 1991768, 2489710, 3485594, 3983536, 4979420, 6971188, 8713985, 9958840, 13942376, 17427970, 19917680, 27884752, 34855940, 69711880, 139423760]

約数ペア:

[(1, 139423760), (2, 69711880), (4, 34855940), (5, 27884752), (7, 19917680), (8, 17427970), (10, 13942376), (14, 9958840), (16, 8713985), (20, 6971188), (28, 4979420), (35, 3983536), (40, 3485594), (56, 2489710), (70, 1991768), (80, 1742797), (112, 1244855), (140, 995884), (280, 497942), (560, 248971)]