81902520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{4643}}^1$

素因数の和:4674

約数の個数: 144

約数和(自身を含む): 309708360

約数和(自身を除く): 227805840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 49, 56, 60, 63, 70, 72, 84, 90, 98, 105, 120, 126, 140, 147, 168, 180, 196, 210, 245, 252, 280, 294, 315, 360, 392, 420, 441, 490, 504, 588, 630, 735, 840, 882, 980, 1176, 1260, 1470, 1764, 1960, 2205, 2520, 2940, 3528, 4410, 4643, 5880, 8820, 9286, 13929, 17640, 18572, 23215, 27858, 32501, 37144, 41787, 46430, 55716, 65002, 69645, 83574, 92860, 97503, 111432, 130004, 139290, 162505, 167148, 185720, 195006, 208935, 227507, 260008, 278580, 292509, 325010, 334296, 390012, 417870, 455014, 487515, 557160, 585018, 650020, 682521, 780024, 835740, 910028, 975030, 1137535, 1170036, 1300040, 1365042, 1462545, 1671480, 1820056, 1950060, 2047563, 2275070, 2340072, 2730084, 2925090, 3412605, 3900120, 4095126, 4550140, 5460168, 5850180, 6825210, 8190252, 9100280, 10237815, 11700360, 13650420, 16380504, 20475630, 27300840, 40951260, 81902520]

約数ペア:

[(1, 81902520), (2, 40951260), (3, 27300840), (4, 20475630), (5, 16380504), (6, 13650420), (7, 11700360), (8, 10237815), (9, 9100280), (10, 8190252), (12, 6825210), (14, 5850180), (15, 5460168), (18, 4550140), (20, 4095126), (21, 3900120), (24, 3412605), (28, 2925090), (30, 2730084), (35, 2340072), (36, 2275070), (40, 2047563), (42, 1950060), (45, 1820056), (49, 1671480), (56, 1462545), (60, 1365042), (63, 1300040), (70, 1170036), (72, 1137535), (84, 975030), (90, 910028), (98, 835740), (105, 780024), (120, 682521), (126, 650020), (140, 585018), (147, 557160), (168, 487515), (180, 455014), (196, 417870), (210, 390012), (245, 334296), (252, 325010), (280, 292509), (294, 278580), (315, 260008), (360, 227507), (392, 208935), (420, 195006), (441, 185720), (490, 167148), (504, 162505), (588, 139290), (630, 130004), (735, 111432), (840, 97503), (882, 92860), (980, 83574), (1176, 69645), (1260, 65002), (1470, 55716), (1764, 46430), (1960, 41787), (2205, 37144), (2520, 32501), (2940, 27858), (3528, 23215), (4410, 18572), (4643, 17640), (5880, 13929), (8820, 9286)]