66159940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{42961}}^1$

素因数の和:42988

約数の個数: 48

約数和(自身を含む): 173222784

約数和(自身を除く): 107062844

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 42961, 85922, 171844, 214805, 300727, 429610, 472571, 601454, 859220, 945142, 1202908, 1503635, 1890284, 2362855, 3007270, 3307997, 4725710, 6014540, 6615994, 9451420, 13231988, 16539985, 33079970, 66159940]

約数ペア:

[(1, 66159940), (2, 33079970), (4, 16539985), (5, 13231988), (7, 9451420), (10, 6615994), (11, 6014540), (14, 4725710), (20, 3307997), (22, 3007270), (28, 2362855), (35, 1890284), (44, 1503635), (55, 1202908), (70, 945142), (77, 859220), (110, 601454), (140, 472571), (154, 429610), (220, 300727), (308, 214805), (385, 171844), (770, 85922), (1540, 42961)]