28180920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3217}}^1$

素因数の和:3304

約数の個数: 64

約数和(自身を含む): 85727520

約数和(自身を除く): 57546600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 73, 120, 146, 219, 292, 365, 438, 584, 730, 876, 1095, 1460, 1752, 2190, 2920, 3217, 4380, 6434, 8760, 9651, 12868, 16085, 19302, 25736, 32170, 38604, 48255, 64340, 77208, 96510, 128680, 193020, 234841, 386040, 469682, 704523, 939364, 1174205, 1409046, 1878728, 2348410, 2818092, 3522615, 4696820, 5636184, 7045230, 9393640, 14090460, 28180920]

約数ペア:

[(1, 28180920), (2, 14090460), (3, 9393640), (4, 7045230), (5, 5636184), (6, 4696820), (8, 3522615), (10, 2818092), (12, 2348410), (15, 1878728), (20, 1409046), (24, 1174205), (30, 939364), (40, 704523), (60, 469682), (73, 386040), (120, 234841), (146, 193020), (219, 128680), (292, 96510), (365, 77208), (438, 64340), (584, 48255), (730, 38604), (876, 32170), (1095, 25736), (1460, 19302), (1752, 16085), (2190, 12868), (2920, 9651), (3217, 8760), (4380, 6434)]