28418815

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 36869472

約数和(自身を除く): 8450657

約数列:

[1, 5, 17, 71, 85, 277, 289, 355, 1207, 1385, 1445, 4709, 6035, 19667, 20519, 23545, 80053, 98335, 102595, 334339, 400265, 1671695, 5683763, 28418815]

約数ペア:

[(1, 28418815), (5, 5683763), (17, 1671695), (71, 400265), (85, 334339), (277, 102595), (289, 98335), (355, 80053), (1207, 23545), (1385, 20519), (1445, 19667), (4709, 6035)]