31550720

素因数分解:

$2^8\times 5^1\times {\mathrm{157}}^2$

素因数の和:335

約数の個数: 54

約数和(自身を含む): 76058262

約数和(自身を除く): 44507542

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 256, 314, 320, 628, 640, 785, 1256, 1280, 1570, 2512, 3140, 5024, 6280, 10048, 12560, 20096, 24649, 25120, 40192, 49298, 50240, 98596, 100480, 123245, 197192, 200960, 246490, 394384, 492980, 788768, 985960, 1577536, 1971920, 3155072, 3943840, 6310144, 7887680, 15775360, 31550720]

約数ペア:

[(1, 31550720), (2, 15775360), (4, 7887680), (5, 6310144), (8, 3943840), (10, 3155072), (16, 1971920), (20, 1577536), (32, 985960), (40, 788768), (64, 492980), (80, 394384), (128, 246490), (157, 200960), (160, 197192), (256, 123245), (314, 100480), (320, 98596), (628, 50240), (640, 49298), (785, 40192), (1256, 25120), (1280, 24649), (1570, 20096), (2512, 12560), (3140, 10048), (5024, 6280)]