28260540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2039}}^1$

素因数の和:2072

約数の個数: 144

約数和(自身を含む): 106928640

約数和(自身を除く): 78668100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1540, 1980, 2039, 2310, 2772, 3465, 4078, 4620, 6117, 6930, 8156, 10195, 12234, 13860, 14273, 18351, 20390, 22429, 24468, 28546, 30585, 36702, 40780, 42819, 44858, 57092, 61170, 67287, 71365, 73404, 85638, 89716, 91755, 112145, 122340, 128457, 134574, 142730, 157003, 171276, 183510, 201861, 214095, 224290, 256914, 269148, 285460, 314006, 336435, 367020, 403722, 428190, 448580, 471009, 513828, 628012, 642285, 672870, 785015, 807444, 856380, 942018, 1009305, 1284570, 1345740, 1413027, 1570030, 1884036, 2018610, 2355045, 2569140, 2826054, 3140060, 4037220, 4710090, 5652108, 7065135, 9420180, 14130270, 28260540]

約数ペア:

[(1, 28260540), (2, 14130270), (3, 9420180), (4, 7065135), (5, 5652108), (6, 4710090), (7, 4037220), (9, 3140060), (10, 2826054), (11, 2569140), (12, 2355045), (14, 2018610), (15, 1884036), (18, 1570030), (20, 1413027), (21, 1345740), (22, 1284570), (28, 1009305), (30, 942018), (33, 856380), (35, 807444), (36, 785015), (42, 672870), (44, 642285), (45, 628012), (55, 513828), (60, 471009), (63, 448580), (66, 428190), (70, 403722), (77, 367020), (84, 336435), (90, 314006), (99, 285460), (105, 269148), (110, 256914), (126, 224290), (132, 214095), (140, 201861), (154, 183510), (165, 171276), (180, 157003), (198, 142730), (210, 134574), (220, 128457), (231, 122340), (252, 112145), (308, 91755), (315, 89716), (330, 85638), (385, 73404), (396, 71365), (420, 67287), (462, 61170), (495, 57092), (630, 44858), (660, 42819), (693, 40780), (770, 36702), (924, 30585), (990, 28546), (1155, 24468), (1260, 22429), (1386, 20390), (1540, 18351), (1980, 14273), (2039, 13860), (2310, 12234), (2772, 10195), (3465, 8156), (4078, 6930), (4620, 6117)]