256804160

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:304

約数の個数: 112

約数和(自身を含む): 632033280

約数和(自身を除く): 375229120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 89, 127, 142, 160, 178, 254, 284, 320, 355, 356, 445, 508, 568, 635, 710, 712, 890, 1016, 1136, 1270, 1420, 1424, 1780, 2032, 2272, 2540, 2840, 2848, 3560, 4064, 4544, 5080, 5680, 5696, 6319, 7120, 8128, 9017, 10160, 11303, 11360, 12638, 14240, 18034, 20320, 22606, 22720, 25276, 28480, 31595, 36068, 40640, 45085, 45212, 50552, 56515, 63190, 72136, 90170, 90424, 101104, 113030, 126380, 144272, 180340, 180848, 202208, 226060, 252760, 288544, 360680, 361696, 404416, 452120, 505520, 577088, 721360, 723392, 802513, 904240, 1011040, 1442720, 1605026, 1808480, 2022080, 2885440, 3210052, 3616960, 4012565, 6420104, 8025130, 12840208, 16050260, 25680416, 32100520, 51360832, 64201040, 128402080, 256804160]

約数ペア:

[(1, 256804160), (2, 128402080), (4, 64201040), (5, 51360832), (8, 32100520), (10, 25680416), (16, 16050260), (20, 12840208), (32, 8025130), (40, 6420104), (64, 4012565), (71, 3616960), (80, 3210052), (89, 2885440), (127, 2022080), (142, 1808480), (160, 1605026), (178, 1442720), (254, 1011040), (284, 904240), (320, 802513), (355, 723392), (356, 721360), (445, 577088), (508, 505520), (568, 452120), (635, 404416), (710, 361696), (712, 360680), (890, 288544), (1016, 252760), (1136, 226060), (1270, 202208), (1420, 180848), (1424, 180340), (1780, 144272), (2032, 126380), (2272, 113030), (2540, 101104), (2840, 90424), (2848, 90170), (3560, 72136), (4064, 63190), (4544, 56515), (5080, 50552), (5680, 45212), (5696, 45085), (6319, 40640), (7120, 36068), (8128, 31595), (9017, 28480), (10160, 25276), (11303, 22720), (11360, 22606), (12638, 20320), (14240, 18034)]