20418756

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1\times {\mathrm{443}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 50125824

約数和(自身を除く): 29707068

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 92, 138, 167, 276, 334, 443, 501, 668, 886, 1002, 1329, 1772, 2004, 2658, 3841, 5316, 7682, 10189, 11523, 15364, 20378, 23046, 30567, 40756, 46092, 61134, 73981, 122268, 147962, 221943, 295924, 443886, 887772, 1701563, 3403126, 5104689, 6806252, 10209378, 20418756]

約数ペア:

[(1, 20418756), (2, 10209378), (3, 6806252), (4, 5104689), (6, 3403126), (12, 1701563), (23, 887772), (46, 443886), (69, 295924), (92, 221943), (138, 147962), (167, 122268), (276, 73981), (334, 61134), (443, 46092), (501, 40756), (668, 30567), (886, 23046), (1002, 20378), (1329, 15364), (1772, 11523), (2004, 10189), (2658, 7682), (3841, 5316)]