31369856

素因数分解:

$2^7\times 7^1\times {\mathrm{157}}^1\times {\mathrm{223}}^1$

素因数の和:401

約数の個数: 64

約数和(自身を含む): 72199680

約数和(自身を除く): 40829824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 157, 223, 224, 314, 446, 448, 628, 892, 896, 1099, 1256, 1561, 1784, 2198, 2512, 3122, 3568, 4396, 5024, 6244, 7136, 8792, 10048, 12488, 14272, 17584, 20096, 24976, 28544, 35011, 35168, 49952, 70022, 70336, 99904, 140044, 140672, 199808, 245077, 280088, 490154, 560176, 980308, 1120352, 1960616, 2240704, 3921232, 4481408, 7842464, 15684928, 31369856]

約数ペア:

[(1, 31369856), (2, 15684928), (4, 7842464), (7, 4481408), (8, 3921232), (14, 2240704), (16, 1960616), (28, 1120352), (32, 980308), (56, 560176), (64, 490154), (112, 280088), (128, 245077), (157, 199808), (223, 140672), (224, 140044), (314, 99904), (446, 70336), (448, 70022), (628, 49952), (892, 35168), (896, 35011), (1099, 28544), (1256, 24976), (1561, 20096), (1784, 17584), (2198, 14272), (2512, 12488), (3122, 10048), (3568, 8792), (4396, 7136), (5024, 6244)]