81075400

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{8273}}^1$

素因数の和:8303

約数の個数: 72

約数和(自身を含む): 219302370

約数和(自身を除く): 138226970

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 8273, 9800, 16546, 33092, 41365, 57911, 66184, 82730, 115822, 165460, 206825, 231644, 289555, 330920, 405377, 413650, 463288, 579110, 810754, 827300, 1158220, 1447775, 1621508, 1654600, 2026885, 2316440, 2895550, 3243016, 4053770, 5791100, 8107540, 10134425, 11582200, 16215080, 20268850, 40537700, 81075400]

約数ペア:

[(1, 81075400), (2, 40537700), (4, 20268850), (5, 16215080), (7, 11582200), (8, 10134425), (10, 8107540), (14, 5791100), (20, 4053770), (25, 3243016), (28, 2895550), (35, 2316440), (40, 2026885), (49, 1654600), (50, 1621508), (56, 1447775), (70, 1158220), (98, 827300), (100, 810754), (140, 579110), (175, 463288), (196, 413650), (200, 405377), (245, 330920), (280, 289555), (350, 231644), (392, 206825), (490, 165460), (700, 115822), (980, 82730), (1225, 66184), (1400, 57911), (1960, 41365), (2450, 33092), (4900, 16546), (8273, 9800)]