20934760

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{971}}^1$

素因数の和:1007

約数の個数: 96

約数和(自身を含む): 59836320

約数和(自身を除く): 38901560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 616, 770, 971, 980, 1078, 1540, 1942, 1960, 2156, 2695, 3080, 3884, 4312, 4855, 5390, 6797, 7768, 9710, 10681, 10780, 13594, 19420, 21362, 21560, 27188, 33985, 38840, 42724, 47579, 53405, 54376, 67970, 74767, 85448, 95158, 106810, 135940, 149534, 190316, 213620, 237895, 271880, 299068, 373835, 380632, 427240, 475790, 523369, 598136, 747670, 951580, 1046738, 1495340, 1903160, 2093476, 2616845, 2990680, 4186952, 5233690, 10467380, 20934760]

約数ペア:

[(1, 20934760), (2, 10467380), (4, 5233690), (5, 4186952), (7, 2990680), (8, 2616845), (10, 2093476), (11, 1903160), (14, 1495340), (20, 1046738), (22, 951580), (28, 747670), (35, 598136), (40, 523369), (44, 475790), (49, 427240), (55, 380632), (56, 373835), (70, 299068), (77, 271880), (88, 237895), (98, 213620), (110, 190316), (140, 149534), (154, 135940), (196, 106810), (220, 95158), (245, 85448), (280, 74767), (308, 67970), (385, 54376), (392, 53405), (440, 47579), (490, 42724), (539, 38840), (616, 33985), (770, 27188), (971, 21560), (980, 21362), (1078, 19420), (1540, 13594), (1942, 10780), (1960, 10681), (2156, 9710), (2695, 7768), (3080, 6797), (3884, 5390), (4312, 4855)]