347900

素因数分解:

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

素因数の和:99

約数の個数: 54

約数和(自身を含む): 890568

約数和(自身を除く): 542668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 71, 98, 100, 140, 142, 175, 196, 245, 284, 350, 355, 490, 497, 700, 710, 980, 994, 1225, 1420, 1775, 1988, 2450, 2485, 3479, 3550, 4900, 4970, 6958, 7100, 9940, 12425, 13916, 17395, 24850, 34790, 49700, 69580, 86975, 173950, 347900]

約数ペア:

[(1, 347900), (2, 173950), (4, 86975), (5, 69580), (7, 49700), (10, 34790), (14, 24850), (20, 17395), (25, 13916), (28, 12425), (35, 9940), (49, 7100), (50, 6958), (70, 4970), (71, 4900), (98, 3550), (100, 3479), (140, 2485), (142, 2450), (175, 1988), (196, 1775), (245, 1420), (284, 1225), (350, 994), (355, 980), (490, 710), (497, 700)]