20863920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1129}}^1$

素因数の和:1163

約数の個数: 160

約数和(自身を含む): 80709120

約数和(自身を除く): 59845200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 105, 110, 112, 120, 132, 140, 154, 165, 168, 176, 210, 220, 231, 240, 264, 280, 308, 330, 336, 385, 420, 440, 462, 528, 560, 616, 660, 770, 840, 880, 924, 1129, 1155, 1232, 1320, 1540, 1680, 1848, 2258, 2310, 2640, 3080, 3387, 3696, 4516, 4620, 5645, 6160, 6774, 7903, 9032, 9240, 11290, 12419, 13548, 15806, 16935, 18064, 18480, 22580, 23709, 24838, 27096, 31612, 33870, 37257, 39515, 45160, 47418, 49676, 54192, 62095, 63224, 67740, 74514, 79030, 86933, 90320, 94836, 99352, 118545, 124190, 126448, 135480, 149028, 158060, 173866, 186285, 189672, 198704, 237090, 248380, 260799, 270960, 298056, 316120, 347732, 372570, 379344, 434665, 474180, 496760, 521598, 596112, 632240, 695464, 745140, 869330, 948360, 993520, 1043196, 1303995, 1390928, 1490280, 1738660, 1896720, 2086392, 2607990, 2980560, 3477320, 4172784, 5215980, 6954640, 10431960, 20863920]

約数ペア:

[(1, 20863920), (2, 10431960), (3, 6954640), (4, 5215980), (5, 4172784), (6, 3477320), (7, 2980560), (8, 2607990), (10, 2086392), (11, 1896720), (12, 1738660), (14, 1490280), (15, 1390928), (16, 1303995), (20, 1043196), (21, 993520), (22, 948360), (24, 869330), (28, 745140), (30, 695464), (33, 632240), (35, 596112), (40, 521598), (42, 496760), (44, 474180), (48, 434665), (55, 379344), (56, 372570), (60, 347732), (66, 316120), (70, 298056), (77, 270960), (80, 260799), (84, 248380), (88, 237090), (105, 198704), (110, 189672), (112, 186285), (120, 173866), (132, 158060), (140, 149028), (154, 135480), (165, 126448), (168, 124190), (176, 118545), (210, 99352), (220, 94836), (231, 90320), (240, 86933), (264, 79030), (280, 74514), (308, 67740), (330, 63224), (336, 62095), (385, 54192), (420, 49676), (440, 47418), (462, 45160), (528, 39515), (560, 37257), (616, 33870), (660, 31612), (770, 27096), (840, 24838), (880, 23709), (924, 22580), (1129, 18480), (1155, 18064), (1232, 16935), (1320, 15806), (1540, 13548), (1680, 12419), (1848, 11290), (2258, 9240), (2310, 9032), (2640, 7903), (3080, 6774), (3387, 6160), (3696, 5645), (4516, 4620)]