2898140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 7053312

約数和(自身を除く): 4155172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 163, 254, 326, 508, 635, 652, 815, 889, 1141, 1270, 1630, 1778, 2282, 2540, 3260, 3556, 4445, 4564, 5705, 8890, 11410, 17780, 20701, 22820, 41402, 82804, 103505, 144907, 207010, 289814, 414020, 579628, 724535, 1449070, 2898140]

約数ペア:

[(1, 2898140), (2, 1449070), (4, 724535), (5, 579628), (7, 414020), (10, 289814), (14, 207010), (20, 144907), (28, 103505), (35, 82804), (70, 41402), (127, 22820), (140, 20701), (163, 17780), (254, 11410), (326, 8890), (508, 5705), (635, 4564), (652, 4445), (815, 3556), (889, 3260), (1141, 2540), (1270, 2282), (1630, 1778)]