81540800

素因数分解:

$2^6\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1$

素因数の和:187

約数の個数: 168

約数和(自身を含む): 226204272

約数和(自身を除く): 144663472

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 41, 44, 50, 55, 64, 80, 82, 88, 100, 110, 113, 160, 164, 176, 200, 205, 220, 226, 275, 320, 328, 352, 400, 410, 440, 451, 452, 550, 565, 656, 704, 800, 820, 880, 902, 904, 1025, 1100, 1130, 1243, 1312, 1600, 1640, 1760, 1804, 1808, 2050, 2200, 2255, 2260, 2486, 2624, 2825, 3280, 3520, 3608, 3616, 4100, 4400, 4510, 4520, 4633, 4972, 5650, 6215, 6560, 7216, 7232, 8200, 8800, 9020, 9040, 9266, 9944, 11275, 11300, 12430, 13120, 14432, 16400, 17600, 18040, 18080, 18532, 19888, 22550, 22600, 23165, 24860, 28864, 31075, 32800, 36080, 36160, 37064, 39776, 45100, 45200, 46330, 49720, 50963, 62150, 65600, 72160, 74128, 79552, 90200, 90400, 92660, 99440, 101926, 115825, 124300, 144320, 148256, 180400, 180800, 185320, 198880, 203852, 231650, 248600, 254815, 296512, 360800, 370640, 397760, 407704, 463300, 497200, 509630, 721600, 741280, 815408, 926600, 994400, 1019260, 1274075, 1482560, 1630816, 1853200, 1988800, 2038520, 2548150, 3261632, 3706400, 4077040, 5096300, 7412800, 8154080, 10192600, 16308160, 20385200, 40770400, 81540800]

約数ペア:

[(1, 81540800), (2, 40770400), (4, 20385200), (5, 16308160), (8, 10192600), (10, 8154080), (11, 7412800), (16, 5096300), (20, 4077040), (22, 3706400), (25, 3261632), (32, 2548150), (40, 2038520), (41, 1988800), (44, 1853200), (50, 1630816), (55, 1482560), (64, 1274075), (80, 1019260), (82, 994400), (88, 926600), (100, 815408), (110, 741280), (113, 721600), (160, 509630), (164, 497200), (176, 463300), (200, 407704), (205, 397760), (220, 370640), (226, 360800), (275, 296512), (320, 254815), (328, 248600), (352, 231650), (400, 203852), (410, 198880), (440, 185320), (451, 180800), (452, 180400), (550, 148256), (565, 144320), (656, 124300), (704, 115825), (800, 101926), (820, 99440), (880, 92660), (902, 90400), (904, 90200), (1025, 79552), (1100, 74128), (1130, 72160), (1243, 65600), (1312, 62150), (1600, 50963), (1640, 49720), (1760, 46330), (1804, 45200), (1808, 45100), (2050, 39776), (2200, 37064), (2255, 36160), (2260, 36080), (2486, 32800), (2624, 31075), (2825, 28864), (3280, 24860), (3520, 23165), (3608, 22600), (3616, 22550), (4100, 19888), (4400, 18532), (4510, 18080), (4520, 18040), (4633, 17600), (4972, 16400), (5650, 14432), (6215, 13120), (6560, 12430), (7216, 11300), (7232, 11275), (8200, 9944), (8800, 9266), (9020, 9040)]