20123394025

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:1039

約数の個数: 96

約数和(自身を含む): 30598041600

約数和(自身を除く): 10474647575

約数列:

[1, 5, 7, 23, 25, 35, 59, 101, 115, 161, 175, 295, 413, 505, 575, 707, 805, 839, 1357, 1475, 2065, 2323, 2525, 3535, 4025, 4195, 5873, 5959, 6785, 9499, 10325, 11615, 16261, 17675, 19297, 20975, 29365, 29795, 33925, 41713, 47495, 49501, 58075, 81305, 84739, 96485, 135079, 137057, 146825, 148975, 208565, 237475, 247505, 346507, 406525, 423695, 482425, 593173, 675395, 685285, 959399, 1042825, 1138523, 1237525, 1732535, 1948997, 2118475, 2965865, 3376975, 3426425, 4796995, 4999601, 5692615, 7969661, 8662675, 9744985, 13642979, 14829325, 23984975, 24998005, 28463075, 34997207, 39848305, 48724925, 68214895, 114990823, 124990025, 174986035, 199241525, 341074475, 574954115, 804935761, 874930175, 2874770575, 4024678805, 20123394025]

約数ペア:

[(1, 20123394025), (5, 4024678805), (7, 2874770575), (23, 874930175), (25, 804935761), (35, 574954115), (59, 341074475), (101, 199241525), (115, 174986035), (161, 124990025), (175, 114990823), (295, 68214895), (413, 48724925), (505, 39848305), (575, 34997207), (707, 28463075), (805, 24998005), (839, 23984975), (1357, 14829325), (1475, 13642979), (2065, 9744985), (2323, 8662675), (2525, 7969661), (3535, 5692615), (4025, 4999601), (4195, 4796995), (5873, 3426425), (5959, 3376975), (6785, 2965865), (9499, 2118475), (10325, 1948997), (11615, 1732535), (16261, 1237525), (17675, 1138523), (19297, 1042825), (20975, 959399), (29365, 685285), (29795, 675395), (33925, 593173), (41713, 482425), (47495, 423695), (49501, 406525), (58075, 346507), (81305, 247505), (84739, 237475), (96485, 208565), (135079, 148975), (137057, 146825)]