66448900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 108

約数和(自身を含む): 170989056

約数和(自身を除く): 104540156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 71, 98, 100, 140, 142, 175, 191, 196, 245, 284, 350, 355, 382, 490, 497, 700, 710, 764, 955, 980, 994, 1225, 1337, 1420, 1775, 1910, 1988, 2450, 2485, 2674, 3479, 3550, 3820, 4775, 4900, 4970, 5348, 6685, 6958, 7100, 9359, 9550, 9940, 12425, 13370, 13561, 13916, 17395, 18718, 19100, 24850, 26740, 27122, 33425, 34790, 37436, 46795, 49700, 54244, 66850, 67805, 69580, 86975, 93590, 94927, 133700, 135610, 173950, 187180, 189854, 233975, 271220, 339025, 347900, 379708, 467950, 474635, 664489, 678050, 935900, 949270, 1328978, 1356100, 1898540, 2373175, 2657956, 3322445, 4746350, 6644890, 9492700, 13289780, 16612225, 33224450, 66448900]

約数ペア:

[(1, 66448900), (2, 33224450), (4, 16612225), (5, 13289780), (7, 9492700), (10, 6644890), (14, 4746350), (20, 3322445), (25, 2657956), (28, 2373175), (35, 1898540), (49, 1356100), (50, 1328978), (70, 949270), (71, 935900), (98, 678050), (100, 664489), (140, 474635), (142, 467950), (175, 379708), (191, 347900), (196, 339025), (245, 271220), (284, 233975), (350, 189854), (355, 187180), (382, 173950), (490, 135610), (497, 133700), (700, 94927), (710, 93590), (764, 86975), (955, 69580), (980, 67805), (994, 66850), (1225, 54244), (1337, 49700), (1420, 46795), (1775, 37436), (1910, 34790), (1988, 33425), (2450, 27122), (2485, 26740), (2674, 24850), (3479, 19100), (3550, 18718), (3820, 17395), (4775, 13916), (4900, 13561), (4970, 13370), (5348, 12425), (6685, 9940), (6958, 9550), (7100, 9359)]