20121448225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{30509}}^1$

素因数の和:30610

約数の個数: 48

約数和(自身を含む): 27602519040

約数和(自身を除く): 7481070815

約数列:

[1, 5, 23, 25, 31, 37, 115, 155, 185, 575, 713, 775, 851, 925, 1147, 3565, 4255, 5735, 17825, 21275, 26381, 28675, 30509, 131905, 152545, 659525, 701707, 762725, 945779, 1128833, 3508535, 4728895, 5644165, 17542675, 21752917, 23644475, 25963159, 28220825, 34993823, 108764585, 129815795, 174969115, 543822925, 649078975, 804857929, 874845575, 4024289645, 20121448225]

約数ペア:

[(1, 20121448225), (5, 4024289645), (23, 874845575), (25, 804857929), (31, 649078975), (37, 543822925), (115, 174969115), (155, 129815795), (185, 108764585), (575, 34993823), (713, 28220825), (775, 25963159), (851, 23644475), (925, 21752917), (1147, 17542675), (3565, 5644165), (4255, 4728895), (5735, 3508535), (17825, 1128833), (21275, 945779), (26381, 762725), (28675, 701707), (30509, 659525), (131905, 152545)]