19796500

素因数分解:

$2^2\times 5^3\times {\mathrm{17}}^2\times {\mathrm{137}}^1$

素因数の和:190

約数の個数: 72

約数和(自身を含む): 46263672

約数和(自身を除く): 26467172

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 137, 170, 250, 274, 289, 340, 425, 500, 548, 578, 685, 850, 1156, 1370, 1445, 1700, 2125, 2329, 2740, 2890, 3425, 4250, 4658, 5780, 6850, 7225, 8500, 9316, 11645, 13700, 14450, 17125, 23290, 28900, 34250, 36125, 39593, 46580, 58225, 68500, 72250, 79186, 116450, 144500, 158372, 197965, 232900, 291125, 395930, 582250, 791860, 989825, 1164500, 1979650, 3959300, 4949125, 9898250, 19796500]

約数ペア:

[(1, 19796500), (2, 9898250), (4, 4949125), (5, 3959300), (10, 1979650), (17, 1164500), (20, 989825), (25, 791860), (34, 582250), (50, 395930), (68, 291125), (85, 232900), (100, 197965), (125, 158372), (137, 144500), (170, 116450), (250, 79186), (274, 72250), (289, 68500), (340, 58225), (425, 46580), (500, 39593), (548, 36125), (578, 34250), (685, 28900), (850, 23290), (1156, 17125), (1370, 14450), (1445, 13700), (1700, 11645), (2125, 9316), (2329, 8500), (2740, 7225), (2890, 6850), (3425, 5780), (4250, 4658)]