72513640

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{20369}}^1$

素因数の和:20469

約数の個数: 32

約数和(自身を含む): 164997000

約数和(自身を除く): 92483360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 20369, 40738, 81476, 101845, 162952, 203690, 407380, 814760, 1812841, 3625682, 7251364, 9064205, 14502728, 18128410, 36256820, 72513640]

約数ペア:

[(1, 72513640), (2, 36256820), (4, 18128410), (5, 14502728), (8, 9064205), (10, 7251364), (20, 3625682), (40, 1812841), (89, 814760), (178, 407380), (356, 203690), (445, 162952), (712, 101845), (890, 81476), (1780, 40738), (3560, 20369)]