20449968

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{503}}^1$

素因数の和:543

約数の個数: 120

約数和(自身を含む): 66495744

約数和(自身を除く): 46045776

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 33, 42, 44, 48, 56, 66, 77, 84, 88, 112, 121, 132, 154, 168, 176, 231, 242, 264, 308, 336, 363, 462, 484, 503, 528, 616, 726, 847, 924, 968, 1006, 1232, 1452, 1509, 1694, 1848, 1936, 2012, 2541, 2904, 3018, 3388, 3521, 3696, 4024, 5082, 5533, 5808, 6036, 6776, 7042, 8048, 10164, 10563, 11066, 12072, 13552, 14084, 16599, 20328, 21126, 22132, 24144, 28168, 33198, 38731, 40656, 42252, 44264, 56336, 60863, 66396, 77462, 84504, 88528, 116193, 121726, 132792, 154924, 169008, 182589, 232386, 243452, 265584, 309848, 365178, 426041, 464772, 486904, 619696, 730356, 852082, 929544, 973808, 1278123, 1460712, 1704164, 1859088, 2556246, 2921424, 3408328, 5112492, 6816656, 10224984, 20449968]

約数ペア:

[(1, 20449968), (2, 10224984), (3, 6816656), (4, 5112492), (6, 3408328), (7, 2921424), (8, 2556246), (11, 1859088), (12, 1704164), (14, 1460712), (16, 1278123), (21, 973808), (22, 929544), (24, 852082), (28, 730356), (33, 619696), (42, 486904), (44, 464772), (48, 426041), (56, 365178), (66, 309848), (77, 265584), (84, 243452), (88, 232386), (112, 182589), (121, 169008), (132, 154924), (154, 132792), (168, 121726), (176, 116193), (231, 88528), (242, 84504), (264, 77462), (308, 66396), (336, 60863), (363, 56336), (462, 44264), (484, 42252), (503, 40656), (528, 38731), (616, 33198), (726, 28168), (847, 24144), (924, 22132), (968, 21126), (1006, 20328), (1232, 16599), (1452, 14084), (1509, 13552), (1694, 12072), (1848, 11066), (1936, 10563), (2012, 10164), (2541, 8048), (2904, 7042), (3018, 6776), (3388, 6036), (3521, 5808), (3696, 5533), (4024, 5082)]