128924140

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1\times {\mathrm{1117}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 281736000

約数和(自身を除く): 152811860

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 199, 290, 398, 580, 796, 995, 1117, 1990, 2234, 3980, 4468, 5585, 5771, 11170, 11542, 22340, 23084, 28855, 32393, 57710, 64786, 115420, 129572, 161965, 222283, 323930, 444566, 647860, 889132, 1111415, 2222830, 4445660, 6446207, 12892414, 25784828, 32231035, 64462070, 128924140]

約数ペア:

[(1, 128924140), (2, 64462070), (4, 32231035), (5, 25784828), (10, 12892414), (20, 6446207), (29, 4445660), (58, 2222830), (116, 1111415), (145, 889132), (199, 647860), (290, 444566), (398, 323930), (580, 222283), (796, 161965), (995, 129572), (1117, 115420), (1990, 64786), (2234, 57710), (3980, 32393), (4468, 28855), (5585, 23084), (5771, 22340), (11170, 11542)]