20084586280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1\times {\mathrm{1871}}^1$

素因数の和:2711

約数の個数: 128

約数和(自身を含む): 50980700160

約数和(自身を除く): 30896113880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 787, 1240, 1364, 1574, 1705, 1871, 2728, 3148, 3410, 3742, 3935, 6296, 6820, 7484, 7870, 8657, 9355, 13640, 14968, 15740, 17314, 18710, 20581, 24397, 31480, 34628, 37420, 41162, 43285, 48794, 58001, 69256, 74840, 82324, 86570, 97588, 102905, 116002, 121985, 164648, 173140, 195176, 205810, 232004, 243970, 268367, 290005, 346280, 411620, 464008, 487940, 536734, 580010, 638011, 823240, 975880, 1073468, 1160020, 1276022, 1341835, 1472477, 2146936, 2320040, 2552044, 2683670, 2944954, 3190055, 5104088, 5367340, 5889908, 6380110, 7362385, 10734680, 11779816, 12760220, 14724770, 16197247, 25520440, 29449540, 32394494, 45646787, 58899080, 64788988, 80986235, 91293574, 129577976, 161972470, 182587148, 228233935, 323944940, 365174296, 456467870, 502114657, 647889880, 912935740, 1004229314, 1825871480, 2008458628, 2510573285, 4016917256, 5021146570, 10042293140, 20084586280]

約数ペア:

[(1, 20084586280), (2, 10042293140), (4, 5021146570), (5, 4016917256), (8, 2510573285), (10, 2008458628), (11, 1825871480), (20, 1004229314), (22, 912935740), (31, 647889880), (40, 502114657), (44, 456467870), (55, 365174296), (62, 323944940), (88, 228233935), (110, 182587148), (124, 161972470), (155, 129577976), (220, 91293574), (248, 80986235), (310, 64788988), (341, 58899080), (440, 45646787), (620, 32394494), (682, 29449540), (787, 25520440), (1240, 16197247), (1364, 14724770), (1574, 12760220), (1705, 11779816), (1871, 10734680), (2728, 7362385), (3148, 6380110), (3410, 5889908), (3742, 5367340), (3935, 5104088), (6296, 3190055), (6820, 2944954), (7484, 2683670), (7870, 2552044), (8657, 2320040), (9355, 2146936), (13640, 1472477), (14968, 1341835), (15740, 1276022), (17314, 1160020), (18710, 1073468), (20581, 975880), (24397, 823240), (31480, 638011), (34628, 580010), (37420, 536734), (41162, 487940), (43285, 464008), (48794, 411620), (58001, 346280), (69256, 290005), (74840, 268367), (82324, 243970), (86570, 232004), (97588, 205810), (102905, 195176), (116002, 173140), (121985, 164648)]