403779160

素因数分解:

$2^3\times 5^1\times {\mathrm{193}}^2\times {\mathrm{271}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 916604640

約数和(自身を除く): 512825480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 193, 271, 386, 542, 772, 965, 1084, 1355, 1544, 1930, 2168, 2710, 3860, 5420, 7720, 10840, 37249, 52303, 74498, 104606, 148996, 186245, 209212, 261515, 297992, 372490, 418424, 523030, 744980, 1046060, 1489960, 2092120, 10094479, 20188958, 40377916, 50472395, 80755832, 100944790, 201889580, 403779160]

約数ペア:

[(1, 403779160), (2, 201889580), (4, 100944790), (5, 80755832), (8, 50472395), (10, 40377916), (20, 20188958), (40, 10094479), (193, 2092120), (271, 1489960), (386, 1046060), (542, 744980), (772, 523030), (965, 418424), (1084, 372490), (1355, 297992), (1544, 261515), (1930, 209212), (2168, 186245), (2710, 148996), (3860, 104606), (5420, 74498), (7720, 52303), (10840, 37249)]