20183120128

素因数分解:

$2^8\times {\mathrm{78840313}}^1$

素因数の和:78840329

約数の個数: 18

約数和(自身を含む): 40287400454

約数和(自身を除く): 20104280326

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78840313, 157680626, 315361252, 630722504, 1261445008, 2522890016, 5045780032, 10091560064, 20183120128]

約数ペア:

[(1, 20183120128), (2, 10091560064), (4, 5045780032), (8, 2522890016), (16, 1261445008), (32, 630722504), (64, 315361252), (128, 157680626), (256, 78840313)]