80821620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40819}}^1$

素因数の和:40845

約数の個数: 72

約数和(自身を含む): 267452640

約数和(自身を除く): 186631020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 40819, 81638, 122457, 163276, 204095, 244914, 367371, 408190, 449009, 489828, 612285, 734742, 816380, 898018, 1224570, 1347027, 1469484, 1796036, 1836855, 2245045, 2449140, 2694054, 3673710, 4041081, 4490090, 5388108, 6735135, 7347420, 8082162, 8980180, 13470270, 16164324, 20205405, 26940540, 40410810, 80821620]

約数ペア:

[(1, 80821620), (2, 40410810), (3, 26940540), (4, 20205405), (5, 16164324), (6, 13470270), (9, 8980180), (10, 8082162), (11, 7347420), (12, 6735135), (15, 5388108), (18, 4490090), (20, 4041081), (22, 3673710), (30, 2694054), (33, 2449140), (36, 2245045), (44, 1836855), (45, 1796036), (55, 1469484), (60, 1347027), (66, 1224570), (90, 898018), (99, 816380), (110, 734742), (132, 612285), (165, 489828), (180, 449009), (198, 408190), (220, 367371), (330, 244914), (396, 204095), (495, 163276), (660, 122457), (990, 81638), (1980, 40819)]