157789940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{102461}}^1$

素因数の和:102488

約数の個数: 48

約数和(自身を含む): 413126784

約数和(自身を除く): 255336844

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, 102461, 204922, 409844, 512305, 717227, 1024610, 1127071, 1434454, 2049220, 2254142, 2868908, 3586135, 4508284, 5635355, 7172270, 7889497, 11270710, 14344540, 15778994, 22541420, 31557988, 39447485, 78894970, 157789940]

約数ペア:

[(1, 157789940), (2, 78894970), (4, 39447485), (5, 31557988), (7, 22541420), (10, 15778994), (11, 14344540), (14, 11270710), (20, 7889497), (22, 7172270), (28, 5635355), (35, 4508284), (44, 3586135), (55, 2868908), (70, 2254142), (77, 2049220), (110, 1434454), (140, 1127071), (154, 1024610), (220, 717227), (308, 512305), (385, 409844), (770, 204922), (1540, 102461)]