81020884.000000000

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{130657}}^1$

素因数の和:130677

約数の個数: 56

約数和(自身を含む): 398245584

約数和(自身を除く): 272814864

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 160, 192, 240, 320, 480, 960, 130657, 261314, 391971, 522628, 653285, 783942, 1045256, 1306570, 1567884, 1959855, 2090512, 2613140, 3135768, 3919710, 4181024, 5226280, 6271536, 7839420, 8362048, 10452560, 12543072, 15678840, 20905120, 25086144, 31357680, 41810240, 62715360, 125430720]

約数ペア:

[(1, 125430720), (2, 62715360), (3, 41810240), (4, 31357680), (5, 25086144), (6, 20905120), (8, 15678840), (10, 12543072), (12, 10452560), (15, 8362048), (16, 7839420), (20, 6271536), (24, 5226280), (30, 4181024), (32, 3919710), (40, 3135768), (48, 2613140), (60, 2090512), (64, 1959855), (80, 1567884), (96, 1306570), (120, 1045256), (160, 783942), (192, 653285), (240, 522628), (320, 391971), (480, 261314), (960, 130657)]