12457775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{509}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 17074800

約数和(自身を除く): 4617025

約数列:

[1, 5, 11, 25, 55, 89, 275, 445, 509, 979, 2225, 2545, 4895, 5599, 12725, 24475, 27995, 45301, 139975, 226505, 498311, 1132525, 2491555, 12457775]

約数ペア:

[(1, 12457775), (5, 2491555), (11, 1132525), (25, 498311), (55, 226505), (89, 139975), (275, 45301), (445, 27995), (509, 24475), (979, 12725), (2225, 5599), (2545, 4895)]