3947600

素因数分解:

$2^4\times 5^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:228

約数の個数: 60

約数和(自身を含む): 9686880

約数和(自身を除く): 5739280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 139, 142, 200, 278, 284, 355, 400, 556, 568, 695, 710, 1112, 1136, 1390, 1420, 1775, 2224, 2780, 2840, 3475, 3550, 5560, 5680, 6950, 7100, 9869, 11120, 13900, 14200, 19738, 27800, 28400, 39476, 49345, 55600, 78952, 98690, 157904, 197380, 246725, 394760, 493450, 789520, 986900, 1973800, 3947600]

約数ペア:

[(1, 3947600), (2, 1973800), (4, 986900), (5, 789520), (8, 493450), (10, 394760), (16, 246725), (20, 197380), (25, 157904), (40, 98690), (50, 78952), (71, 55600), (80, 49345), (100, 39476), (139, 28400), (142, 27800), (200, 19738), (278, 14200), (284, 13900), (355, 11120), (400, 9869), (556, 7100), (568, 6950), (695, 5680), (710, 5560), (1112, 3550), (1136, 3475), (1390, 2840), (1420, 2780), (1775, 2224)]