20176785725

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{6271}}^1$

素因数の和:6438

約数の個数: 48

約数和(自身を含む): 26588964864

約数和(自身を除く): 6412179139

約数列:

[1, 5, 25, 41, 43, 73, 205, 215, 365, 1025, 1075, 1763, 1825, 2993, 3139, 6271, 8815, 14965, 15695, 31355, 44075, 74825, 78475, 128699, 156775, 257111, 269653, 457783, 643495, 1285555, 1348265, 2288915, 3217475, 6427775, 6741325, 11055773, 11444575, 18769103, 19684669, 55278865, 93845515, 98423345, 276394325, 469227575, 492116725, 807071429, 4035357145, 20176785725]

約数ペア:

[(1, 20176785725), (5, 4035357145), (25, 807071429), (41, 492116725), (43, 469227575), (73, 276394325), (205, 98423345), (215, 93845515), (365, 55278865), (1025, 19684669), (1075, 18769103), (1763, 11444575), (1825, 11055773), (2993, 6741325), (3139, 6427775), (6271, 3217475), (8815, 2288915), (14965, 1348265), (15695, 1285555), (31355, 643495), (44075, 457783), (74825, 269653), (78475, 257111), (128699, 156775)]