3958720

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 56

約数和(自身を含む): 9601200

約数和(自身を除く): 5642480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 139, 160, 178, 278, 320, 356, 445, 556, 695, 712, 890, 1112, 1390, 1424, 1780, 2224, 2780, 2848, 3560, 4448, 5560, 5696, 7120, 8896, 11120, 12371, 14240, 22240, 24742, 28480, 44480, 49484, 61855, 98968, 123710, 197936, 247420, 395872, 494840, 791744, 989680, 1979360, 3958720]

約数ペア:

[(1, 3958720), (2, 1979360), (4, 989680), (5, 791744), (8, 494840), (10, 395872), (16, 247420), (20, 197936), (32, 123710), (40, 98968), (64, 61855), (80, 49484), (89, 44480), (139, 28480), (160, 24742), (178, 22240), (278, 14240), (320, 12371), (356, 11120), (445, 8896), (556, 7120), (695, 5696), (712, 5560), (890, 4448), (1112, 3560), (1390, 2848), (1424, 2780), (1780, 2224)]