2478645

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:266

約数の個数: 48

約数和(自身を含む): 4892160

約数和(自身を除く): 2413515

約数列:

[1, 3, 5, 9, 13, 15, 19, 39, 45, 57, 65, 95, 117, 171, 195, 223, 247, 285, 585, 669, 741, 855, 1115, 1235, 2007, 2223, 2899, 3345, 3705, 4237, 8697, 10035, 11115, 12711, 14495, 21185, 26091, 38133, 43485, 55081, 63555, 130455, 165243, 190665, 275405, 495729, 826215, 2478645]

約数ペア:

[(1, 2478645), (3, 826215), (5, 495729), (9, 275405), (13, 190665), (15, 165243), (19, 130455), (39, 63555), (45, 55081), (57, 43485), (65, 38133), (95, 26091), (117, 21185), (171, 14495), (195, 12711), (223, 11115), (247, 10035), (285, 8697), (585, 4237), (669, 3705), (741, 3345), (855, 2899), (1115, 2223), (1235, 2007)]