2080865080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{239731}}^1$

素因数の和:239780

約数の個数: 64

約数和(自身を含む): 5523425280

約数和(自身を除く): 3442560200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 239731, 479462, 958924, 1198655, 1678117, 1917848, 2397310, 3356234, 4794620, 6712468, 7431661, 8390585, 9589240, 13424936, 14863322, 16781170, 29726644, 33562340, 37158305, 52021627, 59453288, 67124680, 74316610, 104043254, 148633220, 208086508, 260108135, 297266440, 416173016, 520216270, 1040432540, 2080865080]

約数ペア:

[(1, 2080865080), (2, 1040432540), (4, 520216270), (5, 416173016), (7, 297266440), (8, 260108135), (10, 208086508), (14, 148633220), (20, 104043254), (28, 74316610), (31, 67124680), (35, 59453288), (40, 52021627), (56, 37158305), (62, 33562340), (70, 29726644), (124, 16781170), (140, 14863322), (155, 13424936), (217, 9589240), (248, 8390585), (280, 7431661), (310, 6712468), (434, 4794620), (620, 3356234), (868, 2397310), (1085, 1917848), (1240, 1678117), (1736, 1198655), (2170, 958924), (4340, 479462), (8680, 239731)]