21232250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 44029440

約数和(自身を除く): 22797190

約数列:

[1, 2, 5, 10, 13, 25, 26, 47, 50, 65, 94, 125, 130, 139, 235, 250, 278, 325, 470, 611, 650, 695, 1175, 1222, 1390, 1625, 1807, 2350, 3055, 3250, 3475, 3614, 5875, 6110, 6533, 6950, 9035, 11750, 13066, 15275, 17375, 18070, 30550, 32665, 34750, 45175, 65330, 76375, 84929, 90350, 152750, 163325, 169858, 225875, 326650, 424645, 451750, 816625, 849290, 1633250, 2123225, 4246450, 10616125, 21232250]

約数ペア:

[(1, 21232250), (2, 10616125), (5, 4246450), (10, 2123225), (13, 1633250), (25, 849290), (26, 816625), (47, 451750), (50, 424645), (65, 326650), (94, 225875), (125, 169858), (130, 163325), (139, 152750), (235, 90350), (250, 84929), (278, 76375), (325, 65330), (470, 45175), (611, 34750), (650, 32665), (695, 30550), (1175, 18070), (1222, 17375), (1390, 15275), (1625, 13066), (1807, 11750), (2350, 9035), (3055, 6950), (3250, 6533), (3475, 6110), (3614, 5875)]