20145520

素因数分解:

$2^4\times 5^1\times {\mathrm{419}}^1\times {\mathrm{601}}^1$

素因数の和:1033

約数の個数: 40

約数和(自身を含む): 47028240

約数和(自身を除く): 26882720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 419, 601, 838, 1202, 1676, 2095, 2404, 3005, 3352, 4190, 4808, 6010, 6704, 8380, 9616, 12020, 16760, 24040, 33520, 48080, 251819, 503638, 1007276, 1259095, 2014552, 2518190, 4029104, 5036380, 10072760, 20145520]

約数ペア:

[(1, 20145520), (2, 10072760), (4, 5036380), (5, 4029104), (8, 2518190), (10, 2014552), (16, 1259095), (20, 1007276), (40, 503638), (80, 251819), (419, 48080), (601, 33520), (838, 24040), (1202, 16760), (1676, 12020), (2095, 9616), (2404, 8380), (3005, 6704), (3352, 6010), (4190, 4808)]