20188949984

素因数分解:

$2^5\times 7^1\times {\mathrm{223}}^1\times {\mathrm{404167}}^1$

素因数の和:404407

約数の個数: 48

約数和(自身を含む): 45628950528

約数和(自身を除く): 25440000544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 223, 224, 446, 892, 1561, 1784, 3122, 3568, 6244, 7136, 12488, 24976, 49952, 404167, 808334, 1616668, 2829169, 3233336, 5658338, 6466672, 11316676, 12933344, 22633352, 45266704, 90129241, 90533408, 180258482, 360516964, 630904687, 721033928, 1261809374, 1442067856, 2523618748, 2884135712, 5047237496, 10094474992, 20188949984]

約数ペア:

[(1, 20188949984), (2, 10094474992), (4, 5047237496), (7, 2884135712), (8, 2523618748), (14, 1442067856), (16, 1261809374), (28, 721033928), (32, 630904687), (56, 360516964), (112, 180258482), (223, 90533408), (224, 90129241), (446, 45266704), (892, 22633352), (1561, 12933344), (1784, 11316676), (3122, 6466672), (3568, 5658338), (6244, 3233336), (7136, 2829169), (12488, 1616668), (24976, 808334), (49952, 404167)]