20178472448

素因数分解:

$2^9\times {\mathrm{991}}^1\times {\mathrm{39769}}^1$

素因数の和:40778

約数の個数: 40

約数和(自身を含む): 40359232320

約数和(自身を除く): 20180759872

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 991, 1982, 3964, 7928, 15856, 31712, 39769, 63424, 79538, 126848, 159076, 253696, 318152, 507392, 636304, 1272608, 2545216, 5090432, 10180864, 20361728, 39411079, 78822158, 157644316, 315288632, 630577264, 1261154528, 2522309056, 5044618112, 10089236224, 20178472448]

約数ペア:

[(1, 20178472448), (2, 10089236224), (4, 5044618112), (8, 2522309056), (16, 1261154528), (32, 630577264), (64, 315288632), (128, 157644316), (256, 78822158), (512, 39411079), (991, 20361728), (1982, 10180864), (3964, 5090432), (7928, 2545216), (15856, 1272608), (31712, 636304), (39769, 507392), (63424, 318152), (79538, 253696), (126848, 159076)]