72867420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{404819}}^1$

素因数の和:404834

約数の個数: 36

約数和(自身を含む): 221031720

約数和(自身を除く): 148164300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 404819, 809638, 1214457, 1619276, 2024095, 2428914, 3643371, 4048190, 4857828, 6072285, 7286742, 8096380, 12144570, 14573484, 18216855, 24289140, 36433710, 72867420]

約数ペア:

[(1, 72867420), (2, 36433710), (3, 24289140), (4, 18216855), (5, 14573484), (6, 12144570), (9, 8096380), (10, 7286742), (12, 6072285), (15, 4857828), (18, 4048190), (20, 3643371), (30, 2428914), (36, 2024095), (45, 1619276), (60, 1214457), (90, 809638), (180, 404819)]