28402640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{757}}^1$

素因数の和:844

約数の個数: 80

約数和(自身を含む): 76697472

約数和(自身を除く): 48294832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 536, 560, 670, 757, 938, 1072, 1340, 1514, 1876, 2345, 2680, 3028, 3752, 3785, 4690, 5299, 5360, 6056, 7504, 7570, 9380, 10598, 12112, 15140, 18760, 21196, 26495, 30280, 37520, 42392, 50719, 52990, 60560, 84784, 101438, 105980, 202876, 211960, 253595, 355033, 405752, 423920, 507190, 710066, 811504, 1014380, 1420132, 1775165, 2028760, 2840264, 3550330, 4057520, 5680528, 7100660, 14201320, 28402640]

約数ペア:

[(1, 28402640), (2, 14201320), (4, 7100660), (5, 5680528), (7, 4057520), (8, 3550330), (10, 2840264), (14, 2028760), (16, 1775165), (20, 1420132), (28, 1014380), (35, 811504), (40, 710066), (56, 507190), (67, 423920), (70, 405752), (80, 355033), (112, 253595), (134, 211960), (140, 202876), (268, 105980), (280, 101438), (335, 84784), (469, 60560), (536, 52990), (560, 50719), (670, 42392), (757, 37520), (938, 30280), (1072, 26495), (1340, 21196), (1514, 18760), (1876, 15140), (2345, 12112), (2680, 10598), (3028, 9380), (3752, 7570), (3785, 7504), (4690, 6056), (5299, 5360)]