208778840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{274709}}^1$

素因数の和:274739

約数の個数: 32

約数和(自身を含む): 494478000

約数和(自身を除く): 285699160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 274709, 549418, 1098836, 1373545, 2197672, 2747090, 5219471, 5494180, 10438942, 10988360, 20877884, 26097355, 41755768, 52194710, 104389420, 208778840]

約数ペア:

[(1, 208778840), (2, 104389420), (4, 52194710), (5, 41755768), (8, 26097355), (10, 20877884), (19, 10988360), (20, 10438942), (38, 5494180), (40, 5219471), (76, 2747090), (95, 2197672), (152, 1373545), (190, 1098836), (380, 549418), (760, 274709)]