20105550900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{509}}^1\times {\mathrm{43889}}^1$

素因数の和:44418

約数の個数: 108

約数和(自身を含む): 63144981900

約数和(自身を除く): 43039431000

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 509, 900, 1018, 1527, 2036, 2545, 3054, 4581, 5090, 6108, 7635, 9162, 10180, 12725, 15270, 18324, 22905, 25450, 30540, 38175, 43889, 45810, 50900, 76350, 87778, 91620, 114525, 131667, 152700, 175556, 219445, 229050, 263334, 395001, 438890, 458100, 526668, 658335, 790002, 877780, 1097225, 1316670, 1580004, 1975005, 2194450, 2633340, 3291675, 3950010, 4388900, 6583350, 7900020, 9875025, 13166700, 19750050, 22339501, 39500100, 44679002, 67018503, 89358004, 111697505, 134037006, 201055509, 223395010, 268074012, 335092515, 402111018, 446790020, 558487525, 670185030, 804222036, 1005277545, 1116975050, 1340370060, 1675462575, 2010555090, 2233950100, 3350925150, 4021110180, 5026387725, 6701850300, 10052775450, 20105550900]

約数ペア:

[(1, 20105550900), (2, 10052775450), (3, 6701850300), (4, 5026387725), (5, 4021110180), (6, 3350925150), (9, 2233950100), (10, 2010555090), (12, 1675462575), (15, 1340370060), (18, 1116975050), (20, 1005277545), (25, 804222036), (30, 670185030), (36, 558487525), (45, 446790020), (50, 402111018), (60, 335092515), (75, 268074012), (90, 223395010), (100, 201055509), (150, 134037006), (180, 111697505), (225, 89358004), (300, 67018503), (450, 44679002), (509, 39500100), (900, 22339501), (1018, 19750050), (1527, 13166700), (2036, 9875025), (2545, 7900020), (3054, 6583350), (4581, 4388900), (5090, 3950010), (6108, 3291675), (7635, 2633340), (9162, 2194450), (10180, 1975005), (12725, 1580004), (15270, 1316670), (18324, 1097225), (22905, 877780), (25450, 790002), (30540, 658335), (38175, 526668), (43889, 458100), (45810, 438890), (50900, 395001), (76350, 263334), (87778, 229050), (91620, 219445), (114525, 175556), (131667, 152700)]