21291240080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2087}}^1\times {\mathrm{11593}}^1$

素因数の和:13704

約数の個数: 80

約数和(自身を含む): 54032863104

約数和(自身を除く): 32741623024

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2087, 4174, 8348, 10435, 11593, 16696, 20870, 22957, 23186, 33392, 41740, 45914, 46372, 57965, 83480, 91828, 92744, 114785, 115930, 127523, 166960, 183656, 185488, 229570, 231860, 255046, 367312, 459140, 463720, 510092, 637615, 918280, 927440, 1020184, 1275230, 1836560, 2040368, 2550460, 5100920, 10201840, 24194591, 48389182, 96778364, 120972955, 193556728, 241945910, 266140501, 387113456, 483891820, 532281002, 967783640, 1064562004, 1330702505, 1935567280, 2129124008, 2661405010, 4258248016, 5322810020, 10645620040, 21291240080]

約数ペア:

[(1, 21291240080), (2, 10645620040), (4, 5322810020), (5, 4258248016), (8, 2661405010), (10, 2129124008), (11, 1935567280), (16, 1330702505), (20, 1064562004), (22, 967783640), (40, 532281002), (44, 483891820), (55, 387113456), (80, 266140501), (88, 241945910), (110, 193556728), (176, 120972955), (220, 96778364), (440, 48389182), (880, 24194591), (2087, 10201840), (4174, 5100920), (8348, 2550460), (10435, 2040368), (11593, 1836560), (16696, 1275230), (20870, 1020184), (22957, 927440), (23186, 918280), (33392, 637615), (41740, 510092), (45914, 463720), (46372, 459140), (57965, 367312), (83480, 255046), (91828, 231860), (92744, 229570), (114785, 185488), (115930, 183656), (127523, 166960)]