428254720

素因数分解:

$2^9\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1277}}^1$

素因数の和:1431

約数の個数: 80

約数和(自身を含む): 1035456048

約数和(自身を除く): 607201328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 160, 256, 262, 320, 512, 524, 640, 655, 1048, 1277, 1280, 1310, 2096, 2554, 2560, 2620, 4192, 5108, 5240, 6385, 8384, 10216, 10480, 12770, 16768, 20432, 20960, 25540, 33536, 40864, 41920, 51080, 67072, 81728, 83840, 102160, 163456, 167287, 167680, 204320, 326912, 334574, 335360, 408640, 653824, 669148, 817280, 836435, 1338296, 1634560, 1672870, 2676592, 3269120, 3345740, 5353184, 6691480, 10706368, 13382960, 21412736, 26765920, 42825472, 53531840, 85650944, 107063680, 214127360, 428254720]

約数ペア:

[(1, 428254720), (2, 214127360), (4, 107063680), (5, 85650944), (8, 53531840), (10, 42825472), (16, 26765920), (20, 21412736), (32, 13382960), (40, 10706368), (64, 6691480), (80, 5353184), (128, 3345740), (131, 3269120), (160, 2676592), (256, 1672870), (262, 1634560), (320, 1338296), (512, 836435), (524, 817280), (640, 669148), (655, 653824), (1048, 408640), (1277, 335360), (1280, 334574), (1310, 326912), (2096, 204320), (2554, 167680), (2560, 167287), (2620, 163456), (4192, 102160), (5108, 83840), (5240, 81728), (6385, 67072), (8384, 51080), (10216, 41920), (10480, 40864), (12770, 33536), (16768, 25540), (20432, 20960)]