20004250

素因数分解:

$2^1\times 5^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 96

約数和(自身を含む): 46096128

約数和(自身を除く): 26091878

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 49, 50, 70, 71, 98, 115, 125, 142, 161, 175, 230, 245, 250, 322, 350, 355, 490, 497, 575, 710, 805, 875, 994, 1127, 1150, 1225, 1610, 1633, 1750, 1775, 2254, 2450, 2485, 2875, 3266, 3479, 3550, 4025, 4970, 5635, 5750, 6125, 6958, 8050, 8165, 8875, 11270, 11431, 12250, 12425, 16330, 17395, 17750, 20125, 22862, 24850, 28175, 34790, 40250, 40825, 56350, 57155, 62125, 80017, 81650, 86975, 114310, 124250, 140875, 160034, 173950, 204125, 281750, 285775, 400085, 408250, 434875, 571550, 800170, 869750, 1428875, 2000425, 2857750, 4000850, 10002125, 20004250]

約数ペア:

[(1, 20004250), (2, 10002125), (5, 4000850), (7, 2857750), (10, 2000425), (14, 1428875), (23, 869750), (25, 800170), (35, 571550), (46, 434875), (49, 408250), (50, 400085), (70, 285775), (71, 281750), (98, 204125), (115, 173950), (125, 160034), (142, 140875), (161, 124250), (175, 114310), (230, 86975), (245, 81650), (250, 80017), (322, 62125), (350, 57155), (355, 56350), (490, 40825), (497, 40250), (575, 34790), (710, 28175), (805, 24850), (875, 22862), (994, 20125), (1127, 17750), (1150, 17395), (1225, 16330), (1610, 12425), (1633, 12250), (1750, 11431), (1775, 11270), (2254, 8875), (2450, 8165), (2485, 8050), (2875, 6958), (3266, 6125), (3479, 5750), (3550, 5635), (4025, 4970)]