285416960

素因数分解:

$2^9\times 5^1\times {\mathrm{111491}}^1$

素因数の和:111514

約数の個数: 40

約数和(自身を含む): 684337896

約数和(自身を除く): 398920936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 111491, 222982, 445964, 557455, 891928, 1114910, 1783856, 2229820, 3567712, 4459640, 7135424, 8919280, 14270848, 17838560, 28541696, 35677120, 57083392, 71354240, 142708480, 285416960]

約数ペア:

[(1, 285416960), (2, 142708480), (4, 71354240), (5, 57083392), (8, 35677120), (10, 28541696), (16, 17838560), (20, 14270848), (32, 8919280), (40, 7135424), (64, 4459640), (80, 3567712), (128, 2229820), (160, 1783856), (256, 1114910), (320, 891928), (512, 557455), (640, 445964), (1280, 222982), (2560, 111491)]