7780230

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:781

約数の個数: 48

約数和(自身を含む): 20408544

約数和(自身を除く): 12628314

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 137, 274, 411, 631, 685, 822, 1233, 1262, 1370, 1893, 2055, 2466, 3155, 3786, 4110, 5679, 6165, 6310, 9465, 11358, 12330, 18930, 28395, 56790, 86447, 172894, 259341, 432235, 518682, 778023, 864470, 1296705, 1556046, 2593410, 3890115, 7780230]

約数ペア:

[(1, 7780230), (2, 3890115), (3, 2593410), (5, 1556046), (6, 1296705), (9, 864470), (10, 778023), (15, 518682), (18, 432235), (30, 259341), (45, 172894), (90, 86447), (137, 56790), (274, 28395), (411, 18930), (631, 12330), (685, 11358), (822, 9465), (1233, 6310), (1262, 6165), (1370, 5679), (1893, 4110), (2055, 3786), (2466, 3155)]