128211175

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1987}}^1$

素因数の和:2115

約数の個数: 24

約数和(自身を含む): 166395600

約数和(自身を除く): 38184425

約数列:

[1, 5, 25, 29, 89, 145, 445, 725, 1987, 2225, 2581, 9935, 12905, 49675, 57623, 64525, 176843, 288115, 884215, 1440575, 4421075, 5128447, 25642235, 128211175]

約数ペア:

[(1, 128211175), (5, 25642235), (25, 5128447), (29, 4421075), (89, 1440575), (145, 884215), (445, 288115), (725, 176843), (1987, 64525), (2225, 57623), (2581, 49675), (9935, 12905)]