18666550

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:446

約数の個数: 72

約数和(自身を含む): 42620040

約数和(自身を除く): 23953490

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 49, 50, 70, 95, 98, 133, 175, 190, 245, 266, 350, 401, 475, 490, 665, 802, 931, 950, 1225, 1330, 1862, 2005, 2450, 2807, 3325, 4010, 4655, 5614, 6650, 7619, 9310, 10025, 14035, 15238, 19649, 20050, 23275, 28070, 38095, 39298, 46550, 53333, 70175, 76190, 98245, 106666, 140350, 190475, 196490, 266665, 373331, 380950, 491225, 533330, 746662, 982450, 1333325, 1866655, 2666650, 3733310, 9333275, 18666550]

約数ペア:

[(1, 18666550), (2, 9333275), (5, 3733310), (7, 2666650), (10, 1866655), (14, 1333325), (19, 982450), (25, 746662), (35, 533330), (38, 491225), (49, 380950), (50, 373331), (70, 266665), (95, 196490), (98, 190475), (133, 140350), (175, 106666), (190, 98245), (245, 76190), (266, 70175), (350, 53333), (401, 46550), (475, 39298), (490, 38095), (665, 28070), (802, 23275), (931, 20050), (950, 19649), (1225, 15238), (1330, 14035), (1862, 10025), (2005, 9310), (2450, 7619), (2807, 6650), (3325, 5614), (4010, 4655)]