128242980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{237487}}^1$

素因数の和:237505

約数の個数: 48

約数和(自身を含む): 398979840

約数和(自身を除く): 270736860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 237487, 474974, 712461, 949948, 1187435, 1424922, 2137383, 2374870, 2849844, 3562305, 4274766, 4749740, 6412149, 7124610, 8549532, 10686915, 12824298, 14249220, 21373830, 25648596, 32060745, 42747660, 64121490, 128242980]

約数ペア:

[(1, 128242980), (2, 64121490), (3, 42747660), (4, 32060745), (5, 25648596), (6, 21373830), (9, 14249220), (10, 12824298), (12, 10686915), (15, 8549532), (18, 7124610), (20, 6412149), (27, 4749740), (30, 4274766), (36, 3562305), (45, 2849844), (54, 2374870), (60, 2137383), (90, 1424922), (108, 1187435), (135, 949948), (180, 712461), (270, 474974), (540, 237487)]