278197700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5381}}^1$

素因数の和:5453

約数の個数: 72

約数和(自身を含む): 672706944

約数和(自身を除く): 394509244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 47, 50, 55, 94, 100, 110, 188, 220, 235, 275, 470, 517, 550, 940, 1034, 1100, 1175, 2068, 2350, 2585, 4700, 5170, 5381, 10340, 10762, 12925, 21524, 25850, 26905, 51700, 53810, 59191, 107620, 118382, 134525, 236764, 252907, 269050, 295955, 505814, 538100, 591910, 1011628, 1183820, 1264535, 1479775, 2529070, 2781977, 2959550, 5058140, 5563954, 5919100, 6322675, 11127908, 12645350, 13909885, 25290700, 27819770, 55639540, 69549425, 139098850, 278197700]

約数ペア:

[(1, 278197700), (2, 139098850), (4, 69549425), (5, 55639540), (10, 27819770), (11, 25290700), (20, 13909885), (22, 12645350), (25, 11127908), (44, 6322675), (47, 5919100), (50, 5563954), (55, 5058140), (94, 2959550), (100, 2781977), (110, 2529070), (188, 1479775), (220, 1264535), (235, 1183820), (275, 1011628), (470, 591910), (517, 538100), (550, 505814), (940, 295955), (1034, 269050), (1100, 252907), (1175, 236764), (2068, 134525), (2350, 118382), (2585, 107620), (4700, 59191), (5170, 53810), (5381, 51700), (10340, 26905), (10762, 25850), (12925, 21524)]