3998225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:126

約数の個数: 48

約数和(自身を含む): 6475776

約数和(自身を除く): 2477551

約数列:

[1, 5, 7, 11, 25, 31, 35, 55, 67, 77, 155, 175, 217, 275, 335, 341, 385, 469, 737, 775, 1085, 1675, 1705, 1925, 2077, 2345, 2387, 3685, 5159, 5425, 8525, 10385, 11725, 11935, 14539, 18425, 22847, 25795, 51925, 59675, 72695, 114235, 128975, 159929, 363475, 571175, 799645, 3998225]

約数ペア:

[(1, 3998225), (5, 799645), (7, 571175), (11, 363475), (25, 159929), (31, 128975), (35, 114235), (55, 72695), (67, 59675), (77, 51925), (155, 25795), (175, 22847), (217, 18425), (275, 14539), (335, 11935), (341, 11725), (385, 10385), (469, 8525), (737, 5425), (775, 5159), (1085, 3685), (1675, 2387), (1705, 2345), (1925, 2077)]