20977857740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3251}}^1\times {\mathrm{46091}}^1$

素因数の和:49358

約数の個数: 48

約数和(自身を含む): 50363437824

約数和(自身を除く): 29385580084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3251, 6502, 13004, 16255, 22757, 32510, 45514, 46091, 65020, 91028, 92182, 113785, 184364, 227570, 230455, 322637, 455140, 460910, 645274, 921820, 1290548, 1613185, 3226370, 6452740, 149841841, 299683682, 599367364, 749209205, 1048892887, 1498418410, 2097785774, 2996836820, 4195571548, 5244464435, 10488928870, 20977857740]

約数ペア:

[(1, 20977857740), (2, 10488928870), (4, 5244464435), (5, 4195571548), (7, 2996836820), (10, 2097785774), (14, 1498418410), (20, 1048892887), (28, 749209205), (35, 599367364), (70, 299683682), (140, 149841841), (3251, 6452740), (6502, 3226370), (13004, 1613185), (16255, 1290548), (22757, 921820), (32510, 645274), (45514, 460910), (46091, 455140), (65020, 322637), (91028, 230455), (92182, 227570), (113785, 184364)]