20440728

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1229}}^1$

素因数の和:1262

約数の個数: 128

約数和(自身を含む): 70848000

約数和(自身を除く): 50407272

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 18, 21, 22, 24, 27, 28, 33, 36, 42, 44, 54, 56, 63, 66, 72, 77, 84, 88, 99, 108, 126, 132, 154, 168, 189, 198, 216, 231, 252, 264, 297, 308, 378, 396, 462, 504, 594, 616, 693, 756, 792, 924, 1188, 1229, 1386, 1512, 1848, 2079, 2376, 2458, 2772, 3687, 4158, 4916, 5544, 7374, 8316, 8603, 9832, 11061, 13519, 14748, 16632, 17206, 22122, 25809, 27038, 29496, 33183, 34412, 40557, 44244, 51618, 54076, 66366, 68824, 77427, 81114, 88488, 94633, 103236, 108152, 121671, 132732, 154854, 162228, 189266, 206472, 232281, 243342, 265464, 283899, 309708, 324456, 365013, 378532, 464562, 486684, 567798, 619416, 730026, 757064, 851697, 929124, 973368, 1135596, 1460052, 1703394, 1858248, 2271192, 2555091, 2920104, 3406788, 5110182, 6813576, 10220364, 20440728]

約数ペア:

[(1, 20440728), (2, 10220364), (3, 6813576), (4, 5110182), (6, 3406788), (7, 2920104), (8, 2555091), (9, 2271192), (11, 1858248), (12, 1703394), (14, 1460052), (18, 1135596), (21, 973368), (22, 929124), (24, 851697), (27, 757064), (28, 730026), (33, 619416), (36, 567798), (42, 486684), (44, 464562), (54, 378532), (56, 365013), (63, 324456), (66, 309708), (72, 283899), (77, 265464), (84, 243342), (88, 232281), (99, 206472), (108, 189266), (126, 162228), (132, 154854), (154, 132732), (168, 121671), (189, 108152), (198, 103236), (216, 94633), (231, 88488), (252, 81114), (264, 77427), (297, 68824), (308, 66366), (378, 54076), (396, 51618), (462, 44244), (504, 40557), (594, 34412), (616, 33183), (693, 29496), (756, 27038), (792, 25809), (924, 22122), (1188, 17206), (1229, 16632), (1386, 14748), (1512, 13519), (1848, 11061), (2079, 9832), (2376, 8603), (2458, 8316), (2772, 7374), (3687, 5544), (4158, 4916)]