890268920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1309219}}^1$

素因数の和:1309247

約数の個数: 32

約数和(自身を含む): 2120936400

約数和(自身を除く): 1230667480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 1309219, 2618438, 5236876, 6546095, 10473752, 13092190, 22256723, 26184380, 44513446, 52368760, 89026892, 111283615, 178053784, 222567230, 445134460, 890268920]

約数ペア:

[(1, 890268920), (2, 445134460), (4, 222567230), (5, 178053784), (8, 111283615), (10, 89026892), (17, 52368760), (20, 44513446), (34, 26184380), (40, 22256723), (68, 13092190), (85, 10473752), (136, 6546095), (170, 5236876), (340, 2618438), (680, 1309219)]