418219820

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{5557}}^1$

素因数の和:5690

約数の個数: 48

約数和(自身を含む): 907599168

約数和(自身を除く): 489379348

約数列:

[1, 2, 4, 5, 10, 20, 53, 71, 106, 142, 212, 265, 284, 355, 530, 710, 1060, 1420, 3763, 5557, 7526, 11114, 15052, 18815, 22228, 27785, 37630, 55570, 75260, 111140, 294521, 394547, 589042, 789094, 1178084, 1472605, 1578188, 1972735, 2945210, 3945470, 5890420, 7890940, 20910991, 41821982, 83643964, 104554955, 209109910, 418219820]

約数ペア:

[(1, 418219820), (2, 209109910), (4, 104554955), (5, 83643964), (10, 41821982), (20, 20910991), (53, 7890940), (71, 5890420), (106, 3945470), (142, 2945210), (212, 1972735), (265, 1578188), (284, 1472605), (355, 1178084), (530, 789094), (710, 589042), (1060, 394547), (1420, 294521), (3763, 111140), (5557, 75260), (7526, 55570), (11114, 37630), (15052, 27785), (18815, 22228)]