81382630

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{307}}^1\times {\mathrm{541}}^1$

素因数の和:869

約数の個数: 48

約数和(自身を含む): 171276336

約数和(自身を除く): 89893706

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 307, 490, 541, 614, 1082, 1535, 2149, 2705, 3070, 3787, 4298, 5410, 7574, 10745, 15043, 18935, 21490, 26509, 30086, 37870, 53018, 75215, 132545, 150430, 166087, 265090, 332174, 830435, 1162609, 1660870, 2325218, 5813045, 8138263, 11626090, 16276526, 40691315, 81382630]

約数ペア:

[(1, 81382630), (2, 40691315), (5, 16276526), (7, 11626090), (10, 8138263), (14, 5813045), (35, 2325218), (49, 1660870), (70, 1162609), (98, 830435), (245, 332174), (307, 265090), (490, 166087), (541, 150430), (614, 132545), (1082, 75215), (1535, 53018), (2149, 37870), (2705, 30086), (3070, 26509), (3787, 21490), (4298, 18935), (5410, 15043), (7574, 10745)]