765380

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:105

約数の個数: 72

約数和(自身を含む): 2068416

約数和(自身を除く): 1303036

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 71, 77, 98, 110, 140, 142, 154, 196, 220, 245, 284, 308, 355, 385, 490, 497, 539, 710, 770, 781, 980, 994, 1078, 1420, 1540, 1562, 1988, 2156, 2485, 2695, 3124, 3479, 3905, 4970, 5390, 5467, 6958, 7810, 9940, 10780, 10934, 13916, 15620, 17395, 21868, 27335, 34790, 38269, 54670, 69580, 76538, 109340, 153076, 191345, 382690, 765380]

約数ペア:

[(1, 765380), (2, 382690), (4, 191345), (5, 153076), (7, 109340), (10, 76538), (11, 69580), (14, 54670), (20, 38269), (22, 34790), (28, 27335), (35, 21868), (44, 17395), (49, 15620), (55, 13916), (70, 10934), (71, 10780), (77, 9940), (98, 7810), (110, 6958), (140, 5467), (142, 5390), (154, 4970), (196, 3905), (220, 3479), (245, 3124), (284, 2695), (308, 2485), (355, 2156), (385, 1988), (490, 1562), (497, 1540), (539, 1420), (710, 1078), (770, 994), (781, 980)]