19990944

素因数分解:

$2^5\times 3^2\times {\mathrm{41}}^1\times {\mathrm{1693}}^1$

素因数の和:1750

約数の個数: 72

約数和(自身を含む): 58270212

約数和(自身を除く): 38279268

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 41, 48, 72, 82, 96, 123, 144, 164, 246, 288, 328, 369, 492, 656, 738, 984, 1312, 1476, 1693, 1968, 2952, 3386, 3936, 5079, 5904, 6772, 10158, 11808, 13544, 15237, 20316, 27088, 30474, 40632, 54176, 60948, 69413, 81264, 121896, 138826, 162528, 208239, 243792, 277652, 416478, 487584, 555304, 624717, 832956, 1110608, 1249434, 1665912, 2221216, 2498868, 3331824, 4997736, 6663648, 9995472, 19990944]

約数ペア:

[(1, 19990944), (2, 9995472), (3, 6663648), (4, 4997736), (6, 3331824), (8, 2498868), (9, 2221216), (12, 1665912), (16, 1249434), (18, 1110608), (24, 832956), (32, 624717), (36, 555304), (41, 487584), (48, 416478), (72, 277652), (82, 243792), (96, 208239), (123, 162528), (144, 138826), (164, 121896), (246, 81264), (288, 69413), (328, 60948), (369, 54176), (492, 40632), (656, 30474), (738, 27088), (984, 20316), (1312, 15237), (1476, 13544), (1693, 11808), (1968, 10158), (2952, 6772), (3386, 5904), (3936, 5079)]