20072920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4217}}^1$

素因数の和:4252

約数の個数: 64

約数和(自身を含む): 54665280

約数和(自身を除く): 34592360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 476, 595, 680, 952, 1190, 2380, 4217, 4760, 8434, 16868, 21085, 29519, 33736, 42170, 59038, 71689, 84340, 118076, 143378, 147595, 168680, 236152, 286756, 295190, 358445, 501823, 573512, 590380, 716890, 1003646, 1180760, 1433780, 2007292, 2509115, 2867560, 4014584, 5018230, 10036460, 20072920]

約数ペア:

[(1, 20072920), (2, 10036460), (4, 5018230), (5, 4014584), (7, 2867560), (8, 2509115), (10, 2007292), (14, 1433780), (17, 1180760), (20, 1003646), (28, 716890), (34, 590380), (35, 573512), (40, 501823), (56, 358445), (68, 295190), (70, 286756), (85, 236152), (119, 168680), (136, 147595), (140, 143378), (170, 118076), (238, 84340), (280, 71689), (340, 59038), (476, 42170), (595, 33736), (680, 29519), (952, 21085), (1190, 16868), (2380, 8434), (4217, 4760)]