18786695420

素因数分解:

$2^2\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1271089}}^1$

素因数の和:1271837

約数の個数: 24

約数和(自身を含む): 39505477200

約数和(自身を除く): 20718781780

約数列:

[1, 2, 4, 5, 10, 20, 739, 1478, 2956, 3695, 7390, 14780, 1271089, 2542178, 5084356, 6355445, 12710890, 25421780, 939334771, 1878669542, 3757339084, 4696673855, 9393347710, 18786695420]

約数ペア:

[(1, 18786695420), (2, 9393347710), (4, 4696673855), (5, 3757339084), (10, 1878669542), (20, 939334771), (739, 25421780), (1478, 12710890), (2956, 6355445), (3695, 5084356), (7390, 2542178), (14780, 1271089)]