640101056

素因数分解:

$2^6\times 7^1\times {\mathrm{389}}^1\times {\mathrm{3673}}^1$

素因数の和:4081

約数の個数: 56

約数和(自身を含む): 1455785760

約数和(自身を除く): 815684704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 389, 448, 778, 1556, 2723, 3112, 3673, 5446, 6224, 7346, 10892, 12448, 14692, 21784, 24896, 25711, 29384, 43568, 51422, 58768, 87136, 102844, 117536, 174272, 205688, 235072, 411376, 822752, 1428797, 1645504, 2857594, 5715188, 10001579, 11430376, 20003158, 22860752, 40006316, 45721504, 80012632, 91443008, 160025264, 320050528, 640101056]

約数ペア:

[(1, 640101056), (2, 320050528), (4, 160025264), (7, 91443008), (8, 80012632), (14, 45721504), (16, 40006316), (28, 22860752), (32, 20003158), (56, 11430376), (64, 10001579), (112, 5715188), (224, 2857594), (389, 1645504), (448, 1428797), (778, 822752), (1556, 411376), (2723, 235072), (3112, 205688), (3673, 174272), (5446, 117536), (6224, 102844), (7346, 87136), (10892, 58768), (12448, 51422), (14692, 43568), (21784, 29384), (24896, 25711)]