20882120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:183

約数の個数: 128

約数和(自身を含む): 58786560

約数和(自身を除く): 37904440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 41, 56, 68, 70, 82, 85, 107, 119, 136, 140, 164, 170, 205, 214, 238, 280, 287, 328, 340, 410, 428, 476, 535, 574, 595, 680, 697, 749, 820, 856, 952, 1070, 1148, 1190, 1394, 1435, 1498, 1640, 1819, 2140, 2296, 2380, 2788, 2870, 2996, 3485, 3638, 3745, 4280, 4387, 4760, 4879, 5576, 5740, 5992, 6970, 7276, 7490, 8774, 9095, 9758, 11480, 12733, 13940, 14552, 14980, 17548, 18190, 19516, 21935, 24395, 25466, 27880, 29960, 30709, 35096, 36380, 39032, 43870, 48790, 50932, 61418, 63665, 72760, 74579, 87740, 97580, 101864, 122836, 127330, 149158, 153545, 175480, 195160, 245672, 254660, 298316, 307090, 372895, 509320, 522053, 596632, 614180, 745790, 1044106, 1228360, 1491580, 2088212, 2610265, 2983160, 4176424, 5220530, 10441060, 20882120]

約数ペア:

[(1, 20882120), (2, 10441060), (4, 5220530), (5, 4176424), (7, 2983160), (8, 2610265), (10, 2088212), (14, 1491580), (17, 1228360), (20, 1044106), (28, 745790), (34, 614180), (35, 596632), (40, 522053), (41, 509320), (56, 372895), (68, 307090), (70, 298316), (82, 254660), (85, 245672), (107, 195160), (119, 175480), (136, 153545), (140, 149158), (164, 127330), (170, 122836), (205, 101864), (214, 97580), (238, 87740), (280, 74579), (287, 72760), (328, 63665), (340, 61418), (410, 50932), (428, 48790), (476, 43870), (535, 39032), (574, 36380), (595, 35096), (680, 30709), (697, 29960), (749, 27880), (820, 25466), (856, 24395), (952, 21935), (1070, 19516), (1148, 18190), (1190, 17548), (1394, 14980), (1435, 14552), (1498, 13940), (1640, 12733), (1819, 11480), (2140, 9758), (2296, 9095), (2380, 8774), (2788, 7490), (2870, 7276), (2996, 6970), (3485, 5992), (3638, 5740), (3745, 5576), (4280, 4879), (4387, 4760)]