731661555

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1259}}^1$

素因数の和:1380

約数の個数: 64

約数和(自身を含む): 1293304320

約数和(自身を除く): 561642765

約数列:

[1, 3, 5, 15, 17, 43, 51, 53, 85, 129, 159, 215, 255, 265, 645, 731, 795, 901, 1259, 2193, 2279, 2703, 3655, 3777, 4505, 6295, 6837, 10965, 11395, 13515, 18885, 21403, 34185, 38743, 54137, 64209, 66727, 107015, 116229, 162411, 193715, 200181, 270685, 321045, 333635, 581145, 812055, 920329, 1000905, 1134359, 2760987, 2869261, 3403077, 4601645, 5671795, 8607783, 13804935, 14346305, 17015385, 43038915, 48777437, 146332311, 243887185, 731661555]

約数ペア:

[(1, 731661555), (3, 243887185), (5, 146332311), (15, 48777437), (17, 43038915), (43, 17015385), (51, 14346305), (53, 13804935), (85, 8607783), (129, 5671795), (159, 4601645), (215, 3403077), (255, 2869261), (265, 2760987), (645, 1134359), (731, 1000905), (795, 920329), (901, 812055), (1259, 581145), (2193, 333635), (2279, 321045), (2703, 270685), (3655, 200181), (3777, 193715), (4505, 162411), (6295, 116229), (6837, 107015), (10965, 66727), (11395, 64209), (13515, 54137), (18885, 38743), (21403, 34185)]