80406550

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{887}}^1$

素因数の和:950

約数の個数: 72

約数和(自身を含む): 178876944

約数和(自身を除く): 98470394

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 37, 49, 50, 70, 74, 98, 175, 185, 245, 259, 350, 370, 490, 518, 887, 925, 1225, 1295, 1774, 1813, 1850, 2450, 2590, 3626, 4435, 6209, 6475, 8870, 9065, 12418, 12950, 18130, 22175, 31045, 32819, 43463, 44350, 45325, 62090, 65638, 86926, 90650, 155225, 164095, 217315, 229733, 310450, 328190, 434630, 459466, 820475, 1086575, 1148665, 1608131, 1640950, 2173150, 2297330, 3216262, 5743325, 8040655, 11486650, 16081310, 40203275, 80406550]

約数ペア:

[(1, 80406550), (2, 40203275), (5, 16081310), (7, 11486650), (10, 8040655), (14, 5743325), (25, 3216262), (35, 2297330), (37, 2173150), (49, 1640950), (50, 1608131), (70, 1148665), (74, 1086575), (98, 820475), (175, 459466), (185, 434630), (245, 328190), (259, 310450), (350, 229733), (370, 217315), (490, 164095), (518, 155225), (887, 90650), (925, 86926), (1225, 65638), (1295, 62090), (1774, 45325), (1813, 44350), (1850, 43463), (2450, 32819), (2590, 31045), (3626, 22175), (4435, 18130), (6209, 12950), (6475, 12418), (8870, 9065)]