19998944

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:200

約数の個数: 96

約数和(自身を含む): 49029120

約数和(自身を除く): 29030176

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 37, 38, 56, 74, 76, 112, 127, 133, 148, 152, 224, 254, 259, 266, 296, 304, 508, 518, 532, 592, 608, 703, 889, 1016, 1036, 1064, 1184, 1406, 1778, 2032, 2072, 2128, 2413, 2812, 3556, 4064, 4144, 4256, 4699, 4826, 4921, 5624, 7112, 8288, 9398, 9652, 9842, 11248, 14224, 16891, 18796, 19304, 19684, 22496, 28448, 32893, 33782, 37592, 38608, 39368, 65786, 67564, 75184, 77216, 78736, 89281, 131572, 135128, 150368, 157472, 178562, 263144, 270256, 357124, 526288, 540512, 624967, 714248, 1052576, 1249934, 1428496, 2499868, 2856992, 4999736, 9999472, 19998944]

約数ペア:

[(1, 19998944), (2, 9999472), (4, 4999736), (7, 2856992), (8, 2499868), (14, 1428496), (16, 1249934), (19, 1052576), (28, 714248), (32, 624967), (37, 540512), (38, 526288), (56, 357124), (74, 270256), (76, 263144), (112, 178562), (127, 157472), (133, 150368), (148, 135128), (152, 131572), (224, 89281), (254, 78736), (259, 77216), (266, 75184), (296, 67564), (304, 65786), (508, 39368), (518, 38608), (532, 37592), (592, 33782), (608, 32893), (703, 28448), (889, 22496), (1016, 19684), (1036, 19304), (1064, 18796), (1184, 16891), (1406, 14224), (1778, 11248), (2032, 9842), (2072, 9652), (2128, 9398), (2413, 8288), (2812, 7112), (3556, 5624), (4064, 4921), (4144, 4826), (4256, 4699)]