20304040

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5233}}^1$

素因数の和:5341

約数の個数: 32

約数和(自身を含む): 46163880

約数和(自身を除く): 25859840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 5233, 10466, 20932, 26165, 41864, 52330, 104660, 209320, 507601, 1015202, 2030404, 2538005, 4060808, 5076010, 10152020, 20304040]

約数ペア:

[(1, 20304040), (2, 10152020), (4, 5076010), (5, 4060808), (8, 2538005), (10, 2030404), (20, 1015202), (40, 507601), (97, 209320), (194, 104660), (388, 52330), (485, 41864), (776, 26165), (970, 20932), (1940, 10466), (3880, 5233)]