20996280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19441}}^1$

素因数の和:19461

約数の個数: 64

約数和(自身を含む): 69991200

約数和(自身を除く): 48994920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19441, 38882, 58323, 77764, 97205, 116646, 155528, 174969, 194410, 233292, 291615, 349938, 388820, 466584, 524907, 583230, 699876, 777640, 874845, 1049814, 1166460, 1399752, 1749690, 2099628, 2332920, 2624535, 3499380, 4199256, 5249070, 6998760, 10498140, 20996280]

約数ペア:

[(1, 20996280), (2, 10498140), (3, 6998760), (4, 5249070), (5, 4199256), (6, 3499380), (8, 2624535), (9, 2332920), (10, 2099628), (12, 1749690), (15, 1399752), (18, 1166460), (20, 1049814), (24, 874845), (27, 777640), (30, 699876), (36, 583230), (40, 524907), (45, 466584), (54, 388820), (60, 349938), (72, 291615), (90, 233292), (108, 194410), (120, 174969), (135, 155528), (180, 116646), (216, 97205), (270, 77764), (360, 58323), (540, 38882), (1080, 19441)]