128402080

素因数分解:

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

素因数の和:302

約数の個数: 96

約数和(自身を含む): 313528320

約数和(自身を除く): 185126240

約数列:

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

約数ペア:

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