18949120

素因数分解:

$2^{10}\times 5^1\times {\mathrm{3701}}^1$

素因数の和:3726

約数の個数: 44

約数和(自身を含む): 45467964

約数和(自身を除く): 26518844

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 3701, 5120, 7402, 14804, 18505, 29608, 37010, 59216, 74020, 118432, 148040, 236864, 296080, 473728, 592160, 947456, 1184320, 1894912, 2368640, 3789824, 4737280, 9474560, 18949120]

約数ペア:

[(1, 18949120), (2, 9474560), (4, 4737280), (5, 3789824), (8, 2368640), (10, 1894912), (16, 1184320), (20, 947456), (32, 592160), (40, 473728), (64, 296080), (80, 236864), (128, 148040), (160, 118432), (256, 74020), (320, 59216), (512, 37010), (640, 29608), (1024, 18505), (1280, 14804), (2560, 7402), (3701, 5120)]