209980360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{169339}}^1$

素因数の和:169381

約数の個数: 32

約数和(自身を含む): 487699200

約数和(自身を除く): 277718840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 169339, 338678, 677356, 846695, 1354712, 1693390, 3386780, 5249509, 6773560, 10499018, 20998036, 26247545, 41996072, 52495090, 104990180, 209980360]

約数ペア:

[(1, 209980360), (2, 104990180), (4, 52495090), (5, 41996072), (8, 26247545), (10, 20998036), (20, 10499018), (31, 6773560), (40, 5249509), (62, 3386780), (124, 1693390), (155, 1354712), (248, 846695), (310, 677356), (620, 338678), (1240, 169339)]