218290840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{176041}}^1$

素因数の和:176083

約数の個数: 32

約数和(自身を含む): 507000960

約数和(自身を除く): 288710120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 176041, 352082, 704164, 880205, 1408328, 1760410, 3520820, 5457271, 7041640, 10914542, 21829084, 27286355, 43658168, 54572710, 109145420, 218290840]

約数ペア:

[(1, 218290840), (2, 109145420), (4, 54572710), (5, 43658168), (8, 27286355), (10, 21829084), (20, 10914542), (31, 7041640), (40, 5457271), (62, 3520820), (124, 1760410), (155, 1408328), (248, 880205), (310, 704164), (620, 352082), (1240, 176041)]