2491180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{431}}^1$

素因数の和:474

約数の個数: 36

約数和(自身を含む): 5570208

約数和(自身を除く): 3079028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 431, 578, 862, 1156, 1445, 1724, 2155, 2890, 4310, 5780, 7327, 8620, 14654, 29308, 36635, 73270, 124559, 146540, 249118, 498236, 622795, 1245590, 2491180]

約数ペア:

[(1, 2491180), (2, 1245590), (4, 622795), (5, 498236), (10, 249118), (17, 146540), (20, 124559), (34, 73270), (68, 36635), (85, 29308), (170, 14654), (289, 8620), (340, 7327), (431, 5780), (578, 4310), (862, 2890), (1156, 2155), (1445, 1724)]