81606990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{1171}}^1$

素因数の和:1305

約数の個数: 64

約数和(自身を含む): 206572032

約数和(自身を除く): 124965042

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 101, 115, 138, 202, 230, 303, 345, 505, 606, 690, 1010, 1171, 1515, 2323, 2342, 3030, 3513, 4646, 5855, 6969, 7026, 11615, 11710, 13938, 17565, 23230, 26933, 34845, 35130, 53866, 69690, 80799, 118271, 134665, 161598, 236542, 269330, 354813, 403995, 591355, 709626, 807990, 1182710, 1774065, 2720233, 3548130, 5440466, 8160699, 13601165, 16321398, 27202330, 40803495, 81606990]

約数ペア:

[(1, 81606990), (2, 40803495), (3, 27202330), (5, 16321398), (6, 13601165), (10, 8160699), (15, 5440466), (23, 3548130), (30, 2720233), (46, 1774065), (69, 1182710), (101, 807990), (115, 709626), (138, 591355), (202, 403995), (230, 354813), (303, 269330), (345, 236542), (505, 161598), (606, 134665), (690, 118271), (1010, 80799), (1171, 69690), (1515, 53866), (2323, 35130), (2342, 34845), (3030, 26933), (3513, 23230), (4646, 17565), (5855, 13938), (6969, 11710), (7026, 11615)]