21394320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{919}}^1$

素因数の和:1032

約数の個数: 80

約数和(自身を含む): 67079040

約数和(自身を除く): 45684720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 97, 120, 194, 240, 291, 388, 485, 582, 776, 919, 970, 1164, 1455, 1552, 1838, 1940, 2328, 2757, 2910, 3676, 3880, 4595, 4656, 5514, 5820, 7352, 7760, 9190, 11028, 11640, 13785, 14704, 18380, 22056, 23280, 27570, 36760, 44112, 55140, 73520, 89143, 110280, 178286, 220560, 267429, 356572, 445715, 534858, 713144, 891430, 1069716, 1337145, 1426288, 1782860, 2139432, 2674290, 3565720, 4278864, 5348580, 7131440, 10697160, 21394320]

約数ペア:

[(1, 21394320), (2, 10697160), (3, 7131440), (4, 5348580), (5, 4278864), (6, 3565720), (8, 2674290), (10, 2139432), (12, 1782860), (15, 1426288), (16, 1337145), (20, 1069716), (24, 891430), (30, 713144), (40, 534858), (48, 445715), (60, 356572), (80, 267429), (97, 220560), (120, 178286), (194, 110280), (240, 89143), (291, 73520), (388, 55140), (485, 44112), (582, 36760), (776, 27570), (919, 23280), (970, 22056), (1164, 18380), (1455, 14704), (1552, 13785), (1838, 11640), (1940, 11028), (2328, 9190), (2757, 7760), (2910, 7352), (3676, 5820), (3880, 5514), (4595, 4656)]