997220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 2540160

約数和(自身を除く): 1542940

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 419, 476, 595, 838, 1190, 1676, 2095, 2380, 2933, 4190, 5866, 7123, 8380, 11732, 14246, 14665, 28492, 29330, 35615, 49861, 58660, 71230, 99722, 142460, 199444, 249305, 498610, 997220]

約数ペア:

[(1, 997220), (2, 498610), (4, 249305), (5, 199444), (7, 142460), (10, 99722), (14, 71230), (17, 58660), (20, 49861), (28, 35615), (34, 29330), (35, 28492), (68, 14665), (70, 14246), (85, 11732), (119, 8380), (140, 7123), (170, 5866), (238, 4190), (340, 2933), (419, 2380), (476, 2095), (595, 1676), (838, 1190)]