2017220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{349}}^1$

素因数の和:392

約数の個数: 36

約数和(自身を含む): 4512900

約数和(自身を除く): 2495680

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 349, 578, 698, 1156, 1396, 1445, 1745, 2890, 3490, 5780, 5933, 6980, 11866, 23732, 29665, 59330, 100861, 118660, 201722, 403444, 504305, 1008610, 2017220]

約数ペア:

[(1, 2017220), (2, 1008610), (4, 504305), (5, 403444), (10, 201722), (17, 118660), (20, 100861), (34, 59330), (68, 29665), (85, 23732), (170, 11866), (289, 6980), (340, 5933), (349, 5780), (578, 3490), (698, 2890), (1156, 1745), (1396, 1445)]