491300

素因数分解:

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

素因数の和:65

約数の個数: 36

約数和(自身を含む): 1132740

約数和(自身を除く): 641440

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 289, 340, 425, 578, 850, 1156, 1445, 1700, 2890, 4913, 5780, 7225, 9826, 14450, 19652, 24565, 28900, 49130, 98260, 122825, 245650, 491300]

約数ペア:

[(1, 491300), (2, 245650), (4, 122825), (5, 98260), (10, 49130), (17, 28900), (20, 24565), (25, 19652), (34, 14450), (50, 9826), (68, 7225), (85, 5780), (100, 4913), (170, 2890), (289, 1700), (340, 1445), (425, 1156), (578, 850)]