19816360

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6271}}^1$

素因数の和:6361

約数の個数: 32

約数和(自身を含む): 45158400

約数和(自身を除く): 25342040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 6271, 12542, 25084, 31355, 50168, 62710, 125420, 250840, 495409, 990818, 1981636, 2477045, 3963272, 4954090, 9908180, 19816360]

約数ペア:

[(1, 19816360), (2, 9908180), (4, 4954090), (5, 3963272), (8, 2477045), (10, 1981636), (20, 990818), (40, 495409), (79, 250840), (158, 125420), (316, 62710), (395, 50168), (632, 31355), (790, 25084), (1580, 12542), (3160, 6271)]