4000850

素因数分解:

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

素因数の和:120

約数の個数: 72

約数和(自身を含む): 9160128

約数和(自身を除く): 5159278

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 49, 50, 70, 71, 98, 115, 142, 161, 175, 230, 245, 322, 350, 355, 490, 497, 575, 710, 805, 994, 1127, 1150, 1225, 1610, 1633, 1775, 2254, 2450, 2485, 3266, 3479, 3550, 4025, 4970, 5635, 6958, 8050, 8165, 11270, 11431, 12425, 16330, 17395, 22862, 24850, 28175, 34790, 40825, 56350, 57155, 80017, 81650, 86975, 114310, 160034, 173950, 285775, 400085, 571550, 800170, 2000425, 4000850]

約数ペア:

[(1, 4000850), (2, 2000425), (5, 800170), (7, 571550), (10, 400085), (14, 285775), (23, 173950), (25, 160034), (35, 114310), (46, 86975), (49, 81650), (50, 80017), (70, 57155), (71, 56350), (98, 40825), (115, 34790), (142, 28175), (161, 24850), (175, 22862), (230, 17395), (245, 16330), (322, 12425), (350, 11431), (355, 11270), (490, 8165), (497, 8050), (575, 6958), (710, 5635), (805, 4970), (994, 4025), (1127, 3550), (1150, 3479), (1225, 3266), (1610, 2485), (1633, 2450), (1775, 2254)]