1389869320

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{709117}}^1$

素因数の和:709142

約数の個数: 48

約数和(自身を含む): 3637775340

約数和(自身を除く): 2247906020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 709117, 1418234, 2836468, 3545585, 4963819, 5672936, 7091170, 9927638, 14182340, 19855276, 24819095, 28364680, 34746733, 39710552, 49638190, 69493466, 99276380, 138986932, 173733665, 198552760, 277973864, 347467330, 694934660, 1389869320]

約数ペア:

[(1, 1389869320), (2, 694934660), (4, 347467330), (5, 277973864), (7, 198552760), (8, 173733665), (10, 138986932), (14, 99276380), (20, 69493466), (28, 49638190), (35, 39710552), (40, 34746733), (49, 28364680), (56, 24819095), (70, 19855276), (98, 14182340), (140, 9927638), (196, 7091170), (245, 5672936), (280, 4963819), (392, 3545585), (490, 2836468), (980, 1418234), (1960, 709117)]