18436480

素因数分解:

$2^7\times 5^1\times {\mathrm{28807}}^1$

素因数の和:28826

約数の個数: 32

約数和(自身を含む): 44076240

約数和(自身を除く): 25639760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28807, 57614, 115228, 144035, 230456, 288070, 460912, 576140, 921824, 1152280, 1843648, 2304560, 3687296, 4609120, 9218240, 18436480]

約数ペア:

[(1, 18436480), (2, 9218240), (4, 4609120), (5, 3687296), (8, 2304560), (10, 1843648), (16, 1152280), (20, 921824), (32, 576140), (40, 460912), (64, 288070), (80, 230456), (128, 144035), (160, 115228), (320, 57614), (640, 28807)]