31439000

素因数分解:

$2^3\times 5^3\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 74412000

約数和(自身を除く): 42973000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 149, 200, 211, 250, 298, 422, 500, 596, 745, 844, 1000, 1055, 1192, 1490, 1688, 2110, 2980, 3725, 4220, 5275, 5960, 7450, 8440, 10550, 14900, 18625, 21100, 26375, 29800, 31439, 37250, 42200, 52750, 62878, 74500, 105500, 125756, 149000, 157195, 211000, 251512, 314390, 628780, 785975, 1257560, 1571950, 3143900, 3929875, 6287800, 7859750, 15719500, 31439000]

約数ペア:

[(1, 31439000), (2, 15719500), (4, 7859750), (5, 6287800), (8, 3929875), (10, 3143900), (20, 1571950), (25, 1257560), (40, 785975), (50, 628780), (100, 314390), (125, 251512), (149, 211000), (200, 157195), (211, 149000), (250, 125756), (298, 105500), (422, 74500), (500, 62878), (596, 52750), (745, 42200), (844, 37250), (1000, 31439), (1055, 29800), (1192, 26375), (1490, 21100), (1688, 18625), (2110, 14900), (2980, 10550), (3725, 8440), (4220, 7450), (5275, 5960)]