639730570

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6389}}^1$

素因数の和:6463

約数の個数: 64

約数和(自身を含む): 1325030400

約数和(自身を除く): 685299830

約数列:

[1, 2, 5, 10, 17, 19, 31, 34, 38, 62, 85, 95, 155, 170, 190, 310, 323, 527, 589, 646, 1054, 1178, 1615, 2635, 2945, 3230, 5270, 5890, 6389, 10013, 12778, 20026, 31945, 50065, 63890, 100130, 108613, 121391, 198059, 217226, 242782, 396118, 543065, 606955, 990295, 1086130, 1213910, 1980590, 2063647, 3367003, 3763121, 4127294, 6734006, 7526242, 10318235, 16835015, 18815605, 20636470, 33670030, 37631210, 63973057, 127946114, 319865285, 639730570]

約数ペア:

[(1, 639730570), (2, 319865285), (5, 127946114), (10, 63973057), (17, 37631210), (19, 33670030), (31, 20636470), (34, 18815605), (38, 16835015), (62, 10318235), (85, 7526242), (95, 6734006), (155, 4127294), (170, 3763121), (190, 3367003), (310, 2063647), (323, 1980590), (527, 1213910), (589, 1086130), (646, 990295), (1054, 606955), (1178, 543065), (1615, 396118), (2635, 242782), (2945, 217226), (3230, 198059), (5270, 121391), (5890, 108613), (6389, 100130), (10013, 63890), (12778, 50065), (20026, 31945)]