640876866

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{3347}}^1$

素因数の和:3503

約数の個数: 64

約数和(自身を含む): 1511903232

約数和(自身を除く): 871026366

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 97, 141, 194, 282, 291, 329, 582, 658, 679, 987, 1358, 1974, 2037, 3347, 4074, 4559, 6694, 9118, 10041, 13677, 20082, 23429, 27354, 31913, 46858, 63826, 70287, 95739, 140574, 157309, 191478, 314618, 324659, 471927, 649318, 943854, 973977, 1101163, 1947954, 2202326, 2272613, 3303489, 4545226, 6606978, 6817839, 13635678, 15258973, 30517946, 45776919, 91553838, 106812811, 213625622, 320438433, 640876866]

約数ペア:

[(1, 640876866), (2, 320438433), (3, 213625622), (6, 106812811), (7, 91553838), (14, 45776919), (21, 30517946), (42, 15258973), (47, 13635678), (94, 6817839), (97, 6606978), (141, 4545226), (194, 3303489), (282, 2272613), (291, 2202326), (329, 1947954), (582, 1101163), (658, 973977), (679, 943854), (987, 649318), (1358, 471927), (1974, 324659), (2037, 314618), (3347, 191478), (4074, 157309), (4559, 140574), (6694, 95739), (9118, 70287), (10041, 63826), (13677, 46858), (20082, 31913), (23429, 27354)]