28379240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 67478400

約数和(自身を除く): 39099160

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 109, 115, 184, 218, 230, 283, 436, 460, 545, 566, 872, 920, 1090, 1132, 1415, 2180, 2264, 2507, 2830, 4360, 5014, 5660, 6509, 10028, 11320, 12535, 13018, 20056, 25070, 26036, 30847, 32545, 50140, 52072, 61694, 65090, 100280, 123388, 130180, 154235, 246776, 260360, 308470, 616940, 709481, 1233880, 1418962, 2837924, 3547405, 5675848, 7094810, 14189620, 28379240]

約数ペア:

[(1, 28379240), (2, 14189620), (4, 7094810), (5, 5675848), (8, 3547405), (10, 2837924), (20, 1418962), (23, 1233880), (40, 709481), (46, 616940), (92, 308470), (109, 260360), (115, 246776), (184, 154235), (218, 130180), (230, 123388), (283, 100280), (436, 65090), (460, 61694), (545, 52072), (566, 50140), (872, 32545), (920, 30847), (1090, 26036), (1132, 25070), (1415, 20056), (2180, 13018), (2264, 12535), (2507, 11320), (2830, 10028), (4360, 6509), (5014, 5660)]