20940668

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:135

約数の個数: 96

約数和(自身を含む): 48263040

約数和(自身を除く): 27322372

約数列:

[1, 2, 4, 7, 14, 17, 28, 29, 34, 37, 41, 58, 68, 74, 82, 116, 119, 148, 164, 203, 238, 259, 287, 406, 476, 493, 518, 574, 629, 697, 812, 986, 1036, 1073, 1148, 1189, 1258, 1394, 1517, 1972, 2146, 2378, 2516, 2788, 3034, 3451, 4292, 4403, 4756, 4879, 6068, 6902, 7511, 8323, 8806, 9758, 10619, 13804, 15022, 16646, 17612, 18241, 19516, 20213, 21238, 25789, 30044, 33292, 36482, 40426, 42476, 43993, 51578, 72964, 80852, 87986, 103156, 127687, 141491, 175972, 180523, 255374, 282982, 307951, 361046, 510748, 565964, 615902, 722092, 747881, 1231804, 1495762, 2991524, 5235167, 10470334, 20940668]

約数ペア:

[(1, 20940668), (2, 10470334), (4, 5235167), (7, 2991524), (14, 1495762), (17, 1231804), (28, 747881), (29, 722092), (34, 615902), (37, 565964), (41, 510748), (58, 361046), (68, 307951), (74, 282982), (82, 255374), (116, 180523), (119, 175972), (148, 141491), (164, 127687), (203, 103156), (238, 87986), (259, 80852), (287, 72964), (406, 51578), (476, 43993), (493, 42476), (518, 40426), (574, 36482), (629, 33292), (697, 30044), (812, 25789), (986, 21238), (1036, 20213), (1073, 19516), (1148, 18241), (1189, 17612), (1258, 16646), (1394, 15022), (1517, 13804), (1972, 10619), (2146, 9758), (2378, 8806), (2516, 8323), (2788, 7511), (3034, 6902), (3451, 6068), (4292, 4879), (4403, 4756)]