18257920

素因数分解:

$2^{11}\times 5^1\times {\mathrm{1783}}^1$

素因数の和:1810

約数の個数: 48

約数和(自身を含む): 43832880

約数和(自身を除く): 25574960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1783, 2048, 2560, 3566, 5120, 7132, 8915, 10240, 14264, 17830, 28528, 35660, 57056, 71320, 114112, 142640, 228224, 285280, 456448, 570560, 912896, 1141120, 1825792, 2282240, 3651584, 4564480, 9128960, 18257920]

約数ペア:

[(1, 18257920), (2, 9128960), (4, 4564480), (5, 3651584), (8, 2282240), (10, 1825792), (16, 1141120), (20, 912896), (32, 570560), (40, 456448), (64, 285280), (80, 228224), (128, 142640), (160, 114112), (256, 71320), (320, 57056), (512, 35660), (640, 28528), (1024, 17830), (1280, 14264), (1783, 10240), (2048, 8915), (2560, 7132), (3566, 5120)]