28505425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{631}}^1$

素因数の和:793

約数の個数: 24

約数和(自身を含む): 38400320

約数和(自身を除く): 9894895

約数列:

[1, 5, 13, 25, 65, 139, 325, 631, 695, 1807, 3155, 3475, 8203, 9035, 15775, 41015, 45175, 87709, 205075, 438545, 1140217, 2192725, 5701085, 28505425]

約数ペア:

[(1, 28505425), (5, 5701085), (13, 2192725), (25, 1140217), (65, 438545), (139, 205075), (325, 87709), (631, 45175), (695, 41015), (1807, 15775), (3155, 9035), (3475, 8203)]