51297500

素因数分解:

$2^2\times 5^4\times {\mathrm{17}}^2\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 90

約数和(自身を含む): 120842568

約数和(自身を除く): 69545068

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 71, 85, 100, 125, 142, 170, 250, 284, 289, 340, 355, 425, 500, 578, 625, 710, 850, 1156, 1207, 1250, 1420, 1445, 1700, 1775, 2125, 2414, 2500, 2890, 3550, 4250, 4828, 5780, 6035, 7100, 7225, 8500, 8875, 10625, 12070, 14450, 17750, 20519, 21250, 24140, 28900, 30175, 35500, 36125, 41038, 42500, 44375, 60350, 72250, 82076, 88750, 102595, 120700, 144500, 150875, 177500, 180625, 205190, 301750, 361250, 410380, 512975, 603500, 722500, 754375, 1025950, 1508750, 2051900, 2564875, 3017500, 5129750, 10259500, 12824375, 25648750, 51297500]

約数ペア:

[(1, 51297500), (2, 25648750), (4, 12824375), (5, 10259500), (10, 5129750), (17, 3017500), (20, 2564875), (25, 2051900), (34, 1508750), (50, 1025950), (68, 754375), (71, 722500), (85, 603500), (100, 512975), (125, 410380), (142, 361250), (170, 301750), (250, 205190), (284, 180625), (289, 177500), (340, 150875), (355, 144500), (425, 120700), (500, 102595), (578, 88750), (625, 82076), (710, 72250), (850, 60350), (1156, 44375), (1207, 42500), (1250, 41038), (1420, 36125), (1445, 35500), (1700, 30175), (1775, 28900), (2125, 24140), (2414, 21250), (2500, 20519), (2890, 17750), (3550, 14450), (4250, 12070), (4828, 10625), (5780, 8875), (6035, 8500), (7100, 7225)]