80251300

素因数分解:

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

素因数の和:301

約数の個数: 72

約数和(自身を含む): 179988480

約数和(自身を除く): 99737180

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 89, 100, 127, 142, 178, 254, 284, 355, 356, 445, 508, 635, 710, 890, 1270, 1420, 1775, 1780, 2225, 2540, 3175, 3550, 4450, 6319, 6350, 7100, 8900, 9017, 11303, 12638, 12700, 18034, 22606, 25276, 31595, 36068, 45085, 45212, 56515, 63190, 90170, 113030, 126380, 157975, 180340, 225425, 226060, 282575, 315950, 450850, 565150, 631900, 802513, 901700, 1130300, 1605026, 3210052, 4012565, 8025130, 16050260, 20062825, 40125650, 80251300]

約数ペア:

[(1, 80251300), (2, 40125650), (4, 20062825), (5, 16050260), (10, 8025130), (20, 4012565), (25, 3210052), (50, 1605026), (71, 1130300), (89, 901700), (100, 802513), (127, 631900), (142, 565150), (178, 450850), (254, 315950), (284, 282575), (355, 226060), (356, 225425), (445, 180340), (508, 157975), (635, 126380), (710, 113030), (890, 90170), (1270, 63190), (1420, 56515), (1775, 45212), (1780, 45085), (2225, 36068), (2540, 31595), (3175, 25276), (3550, 22606), (4450, 18034), (6319, 12700), (6350, 12638), (7100, 11303), (8900, 9017)]