28658425

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{503}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 37122624

約数和(自身を除く): 8464199

約数列:

[1, 5, 25, 43, 53, 215, 265, 503, 1075, 1325, 2279, 2515, 11395, 12575, 21629, 26659, 56975, 108145, 133295, 540725, 666475, 1146337, 5731685, 28658425]

約数ペア:

[(1, 28658425), (5, 5731685), (25, 1146337), (43, 666475), (53, 540725), (215, 133295), (265, 108145), (503, 56975), (1075, 26659), (1325, 21629), (2279, 12575), (2515, 11395)]