31921000

素因数分解:

$2^3\times 5^3\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:391

約数の個数: 64

約数和(自身を含む): 75563280

約数和(自身を除く): 43642280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 137, 200, 233, 250, 274, 466, 500, 548, 685, 932, 1000, 1096, 1165, 1370, 1864, 2330, 2740, 3425, 4660, 5480, 5825, 6850, 9320, 11650, 13700, 17125, 23300, 27400, 29125, 31921, 34250, 46600, 58250, 63842, 68500, 116500, 127684, 137000, 159605, 233000, 255368, 319210, 638420, 798025, 1276840, 1596050, 3192100, 3990125, 6384200, 7980250, 15960500, 31921000]

約数ペア:

[(1, 31921000), (2, 15960500), (4, 7980250), (5, 6384200), (8, 3990125), (10, 3192100), (20, 1596050), (25, 1276840), (40, 798025), (50, 638420), (100, 319210), (125, 255368), (137, 233000), (200, 159605), (233, 137000), (250, 127684), (274, 116500), (466, 68500), (500, 63842), (548, 58250), (685, 46600), (932, 34250), (1000, 31921), (1096, 29125), (1165, 27400), (1370, 23300), (1864, 17125), (2330, 13700), (2740, 11650), (3425, 9320), (4660, 6850), (5480, 5825)]