20123081880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{66571}}^1$

素因数の和:66825

約数の個数: 128

約数和(自身を含む): 66145939200

約数和(自身を除く): 46022857320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 229, 264, 330, 440, 458, 660, 687, 916, 1145, 1320, 1374, 1832, 2290, 2519, 2748, 3435, 4580, 5038, 5496, 6870, 7557, 9160, 10076, 12595, 13740, 15114, 20152, 25190, 27480, 30228, 37785, 50380, 60456, 66571, 75570, 100760, 133142, 151140, 199713, 266284, 302280, 332855, 399426, 532568, 665710, 732281, 798852, 998565, 1331420, 1464562, 1597704, 1997130, 2196843, 2662840, 2929124, 3661405, 3994260, 4393686, 5858248, 7322810, 7988520, 8787372, 10984215, 14645620, 15244759, 17574744, 21968430, 29291240, 30489518, 43936860, 45734277, 60979036, 76223795, 87873720, 91468554, 121958072, 152447590, 167692349, 182937108, 228671385, 304895180, 335384698, 365874216, 457342770, 503077047, 609790360, 670769396, 838461745, 914685540, 1006154094, 1341538792, 1676923490, 1829371080, 2012308188, 2515385235, 3353846980, 4024616376, 5030770470, 6707693960, 10061540940, 20123081880]

約数ペア:

[(1, 20123081880), (2, 10061540940), (3, 6707693960), (4, 5030770470), (5, 4024616376), (6, 3353846980), (8, 2515385235), (10, 2012308188), (11, 1829371080), (12, 1676923490), (15, 1341538792), (20, 1006154094), (22, 914685540), (24, 838461745), (30, 670769396), (33, 609790360), (40, 503077047), (44, 457342770), (55, 365874216), (60, 335384698), (66, 304895180), (88, 228671385), (110, 182937108), (120, 167692349), (132, 152447590), (165, 121958072), (220, 91468554), (229, 87873720), (264, 76223795), (330, 60979036), (440, 45734277), (458, 43936860), (660, 30489518), (687, 29291240), (916, 21968430), (1145, 17574744), (1320, 15244759), (1374, 14645620), (1832, 10984215), (2290, 8787372), (2519, 7988520), (2748, 7322810), (3435, 5858248), (4580, 4393686), (5038, 3994260), (5496, 3661405), (6870, 2929124), (7557, 2662840), (9160, 2196843), (10076, 1997130), (12595, 1597704), (13740, 1464562), (15114, 1331420), (20152, 998565), (25190, 798852), (27480, 732281), (30228, 665710), (37785, 532568), (50380, 399426), (60456, 332855), (66571, 302280), (75570, 266284), (100760, 199713), (133142, 151140)]